EXO 5

1. A: Did
you like the movie "Star Wars?"

B: I don't know. I (see, never) have never seen that
movie.



2. Sam (arrive) arrived in San Diego a week ago.



3. My best friend and I (know) have known each other
for over fifteen years. We still get together once a week.



4. Stinson is a fantastic writer. He (write) has written
ten very creative short stories in the last year. One day, he'll be as famous
as Hemingway.



5. I (have, not) this much fun since I (be) was a kid.



6. Things (change) a great deal at Coltech, Inc. When
we first (start) started working here three years
ago, the company (have, only) six employees. Since then, we
(expand) have expanded to include more than 2000
full-time workers.



7. I (tell) told him to stay on the path while he
was hiking, but he (wander) wandered off into the
forest and (be) was bitten by a snake.



8. Listen Donna, I don't care if you (miss) missed
the bus this morning. You (be) late to work too many times. You are
fired!



9. Sam is from Colorado, which is hundreds of miles from the coast, so he (see,
never) the ocean. He should come with us to
Miami.



10. How sad! George (dream) dreamed of going to
California before he died, but he didn't make it. He (see, never) the ocean.



11. In the last hundred years, traveling (become) much easier and very comfortable. In
the 19th century, it (take) two or three months to cross North
America by covered wagon. The trip (be) was very
rough and often dangerous. Things (change) a great deal in the last hundred and
fifty years. Now you can fly from New York to Los Angeles in a matter of hours.




12. Jonny, I can't believe how much you (change) since the last time I (see) saw you. You (grow) at least a foot!



13. This tree (be) planted by the settlers who (found) our city over four hundred years ago.



14. This mountain (be, never) climbed by anyone. Several
mountaineers (try) to reach the top, but nobody
(succeed, ever) . The climb is extremely difficult
and many people (die) trying to reach the summit.



15. I (visit, never) Africa, but I (travel) to South America several times. The last time I
(go) to South America, I (visit) visited Brazil and Peru. I (spend) spent
two weeks in the Amazon, (hike) hiked for a week
near Machu Picchu, and (fly) flew over the Nazca
Lines.

EXO 6

Your score is 80%.



Some of your answers are incorrect. Incorrect answers have been left in place
for you to change.

Haut du formulaire

Since computers were first introduced to the public in the early 1980's,
technology (change) a great deal. The first
computers (be) were simple machines designed for basic tasks. They (have, not) much memory
and they (be, not) were not very powerful. Early computers were often quite
expensive and customers often (pay) paid thousands of dollars for machines
which actually (do) did very little. Most computers (be) were separate,
individual machines used mostly as expensive typewriters or for playing games.



Times (change) have changed. Computers (become) have become powerful machines
with very practical applications. Programmers (create) have created a large
selection of useful programs which do everything from teaching foreign
languages to bookkeeping. We are still playing video games, but today's games
(become) have become faster, more exciting interactive adventures. Many
computer users (get, also) have also got on the Internet and (begin) have begun
communicating with other computer users around the world. We (start) have
started to create international communities online. In short, the simple,
individual machines of the past (evolve) into an
international World Wide Web of knowledge.

EXO 7

Your score is 45%.



Some of your answers are incorrect. Incorrect answers have been left in place
for you to change.

Inizio modulo

Robin: I think the waiter (forget) has
forgotten us. We (wait) have been waiting here for over half an hour
and nobody (take) has taken our order yet.



Michele: I think you're right. He (walk) has walked by us at
least twenty times. He probably thinks we (order, already) .



Robin: Look at that couple over there, they (be, only) here for five or ten minutes and they already have their food.



Michele: He must realize we (order, not) have not ordered yet! We
(sit) here for over half an hour staring at him.



Robin: I don't know if he (notice, even) us. He (run) from
table to table taking orders and serving food.



Michele: That's true, and he (look, not) has not looked in our
direction once.

EXO 8

Your score is 50%.



Some of your answers are incorrect. Incorrect answers have been left in place
for you to change.

Inizio modulo

1. Judy: How long (be) have you been in Canada?

Claude: I (study) have been studying here for more than three years.



2. I (have) the same car for more than ten years. I'm thinking about buying a new one.



3. I (love) chocolate since I was a child. You might even call me a
"chocoholic."



4. Matt and Sarah (have) some
difficulties in their relationship lately, so they (go) to a marriage counselor. I hope they work everything out.



5. John (work) has been working for the government since he graduated
from Harvard University. Until recently, he (enjoy) has enjoyed his
work, but now he is talking about retiring.



6. Lately, I (think) about
changing my career because I (become) have become dissatisfied with the
conditions at my company.



7. I (see) have been seeing Judy for more than five years and during
that time I (see) many
changes in her personality.