10. What about ______ (climb) the mountains ?

9.　　 　What ________he __________(do) when his grandmother fell down?

8.　　 We students can study in the classroom in _____________(silent) without teachers.

7.　　 My ___________(fly) to New York was very exciting last weekend.

6.　　 I was ____________(surprise) to see you in this such party.

5.　　 We _______________(watch) the movie when the electricity was off.

4.　　 It began to rain outside while Tom ____________(eat) supper.

3.　　 She told me that she ____________(get) high grades in the math test.

2.　　 I heard him _______________(cook) something in the kitchen last night.

1.　　 They’re _____________(argue) the pollution with their teacher.