1. What did we see in the clouds when we looked at the sky? a) The plane disappeared b) The plane was disappearing

1. What did we see in the clouds when we looked at the sky?
a) The plane disappeared
b) The plane was disappearing
c) The plane was to disappear

2. When can we expect the Chinese delegation?
a) Leaving
b) To leave
c) To be leaving

3. What did Mr. Smith not want his daughter to become?
a) Become
b) To become
c) Becoming

4. What did we expect them to do in the water polo championship?
a) Take part
b) To take part
c) Taking part

5. What does Mrs. Edwards usually do at home when he feels sick?
a) Let her son stay
b) Lets her son stay
c) Lets her son to stay

6. How did Betty feel?
a) Her hands began to tremble.
b) Her hands started trembling.