2was dancing

3did you laugh

4drank

5rode

6was writing

7was raining

8played

9sang

10 was cleaning

~10.~
2) was dancing
3) did you laughung
4) drank
5) rode
6) was writing
7) was raining
8) played
9) sang
10) was cleaning

~11.~
A)
2) was driving
3) flew
4) was trying
5) crashed
6) was not
B)
1) went
2) was talking
3) arrived
4) gave
5) was
6) ended
C)
1) tidied
2) was tidying
3) found
4) had
5) didn't want
6) put
7) stored
4)