6 D. 7 E. 8 G. 9 A. 10 B. 11 H. 12 C. 13 F
12
13
B. are laughing, since are is in present tense and "-ing" suggests the action is currently happening.
Answer:
I think it is A!
Note:
I'm not quite sure if that is right, if it is please let me know! :)