1. D

2. A

3. C

4. A

---------

1. D

2. B

3. A

4. C

------

1. had seen 

2. be written

3. invented

4. have (ever) visited

-----

1. careful

2. friendless

3. communication

4. developing

----

1. She asked her friend if she believed that there was life on other planets.

2. He said he was taking his driving test the next day.

3. Rescue workers will be sent to the flooded villages.

4. Unless you have a reservation, you can't travel on this train.

I/ 1. D     2.A     3. C     4. A

II/ 1. D     2. B     3. A     4. C

III/ 1. had seen      2. be written     3. invented     4. have visited

IV/ 1. careful     2. friendless     3. communication     4. developed

V/ 1. She asked her friend if he/she believed that there was life on other planets

2. He said he was talking his driving test the next day

3. Rescue workers will be sent to the flooded villages

4. Unless you have a reservation, you can't travel on this train