1. How long have you (read) ___read____that story book?

2. Up to now, the teacher (give) ____has given___ our class five tests.

3. He (visit) _visited___ his friend yesterday but he (be) ___was__out.

4. Be quiet! The baby (sleep) __is sleeping______.

5. Light (travel) ____travels_______faster than sound.

6. What was Tom (do) ___doing______when you saw him?

7. George (fall) ____fell___off the ladder while he (paint) was painting___the ceiling.

8. when we (have) ____were having____ dinner last night, the lights (go)went ____out.

9. There are a lot of black clouds in the sky. It (rain) __is going to rain___.

10. I (stay) ___will stay___here until he answers ______ me.

1. read
2. is giving
3. visited - was
4. is sleeping
5. travel
6. did
7. Falled....painted
8. Has...were going
9. Rains