1. The best time __________ (plant) trees is in spring.

2. Satellites are used for __________ (learn) more about the earth.

3. He finishes __________ (wash) at eight o’clock in the evening.

4. You’ve worked for 4 hours. Please stop __________ (have) a rest.

5. She often makes us __________ (do) a lot of homework after school.

6. Mother always tell me __________ (not read) in bed.

7. They asked the headmaster __________ (speak) at the meeting.