16．I found that the students _________(play) football on the playground.

15．We __________(see) several members of the family since we ________(arrive)

14．________this kind of car __________(produce) in Shanghai?

13．I _________(lost) my bike ._________you _________(see) it anywhere?

12．I_________(be) afraid Mr Johnson __________(not visit) out school tomorrow.

11．”Where ________we________(meet)?” “Let’s meet outside the park gate.”

10．I __________(feel) much better after I _______(take) the medicine.

9．Light ___________(travel )much faster than sound.

8．She _________(not go) to bed until she _______(finish) her work.

7．The last bus ____________just ________(leave) when they ________(get) to the bus stop.