Ex.1

1-h

2-f

3-g

4-a

5-d

6-e

7-b

8-c

Ex.2

1) went

2) had understood

3) had been

4) a) would get lost

    b) didn't take

5) couldn't

6) a) have to

    b) rang

Ex.3

1) during

2) meanwhile

3) while

4) by the time 

5) as soon as

Ex.4

1) 

2) although

3) however

4) nevertheless

5) nevertheless

6) though

7) even though

Ex.5 

1) how much money do we need?

2) could we sit down somewhere? 

3) It is cold outside? 

4) Do you know how long the jorney take? 

5) when will the shop open? 

6) I wonder if this machine works

7) is this bus going near buckingham palace? 

8) I would like to know who those people are 

Ex.6 

1)

2) he would phone him the day after 

3) Anna asked him what they had been told him 

4) if she could come back the following week 

5)

6) why they didn't set up their own business 

7) she told me to tell the police what I have seen today