I/ 1b 2d 3c 4a 5a
II/ 1A 2C 3B 4C 5D 6A 7A 8D 9C 10B 11D 12D 13C 14A 15C 16A
III/
1. sending -> to send
2. too -> so
3. by -> on
4. hardly -> hard
IV/
1. are imagining
2. didn't go
3. is held
4. Have you ever been
V/ 1C 2A 3E 4F 5B 6D
VI/
1. discoverer
2. geological
3. strengthens
4. imitate