[     ]

A．study
B．learns
C．to learn
D．studies

A．speak
B．speaking
C．to speak
D．speaks

A.have
B.to have
C.has
D.having

A．to mend this watch
B．this watch to mend
C．mend this watch
D．this watch mended

1. It's difficult __________ (predict) the future.
2. I have a lot of books ___________ (read).
3. The police asked the old man __________ (try) __________ (recall) his address.
4. Why __________ (go) out at night?
5. The mother made the baby __________ (stop) __________ (cry).
6. She reached the top of the hill and stopped __________ (rest).
7. __________ (get) enough sleep is very important.
8. My advice is __________ (highlight) the key points in the texts.

1. We are so glad ________ (hear) the news.
2. I saw him ________ (cross) the road safely and ________ (run) away.
3. You can't make him ________ (do) what you want.
4. I don't know where ________ (meet) him.
5. What makes you ________ (think) I'm a farmer?
6. Did you see him ________ (go) upstairs?
7. It is better ________ (put) your money in a bank.
8. It is difficult for the boy ________ (swim) across the river.

1. The old man is so old that he can't work.
    The old man is too old                         .
2. I don't know how I can get to the TV factory.
    I don't know                                         to the TV factory.
3. Mr. Green went back to England for a holiday.
    Mr. Green went back to England                           a holiday.
4. Mike hopes he can visit the Great Wall on day.
    Mike hopes                          the Great Wall one day.
5. Does he say anything for himself at the meeting?
    Does he have anything                          for himself at the meeting?
6. He is so strong that he can carry the heavy box.
    He is strong                                       the heavy box.
7. He spent two hours doing the work.
    It             him two hours                          the work.
8. It's time for school.
    It's time                                       school.
9. It seems that she is an English teacher.
    She                                       an English teacher.
10. His father said to him, "listen to the teacher carefully."
      His father told him                                       the teacher carefully.