1.by this time tomorrow i for three hours. a)will fly b)will be flying c)will have fly d)will have been flying 2.the man looked so miserable that she burst a)laughing b)laughter c)crying d)tears 3.dave since he eft three days ago a) didn't see b) wacn't being seen c) hasn't seen d) hasn't been seen 4.she could't help when she saw his haircut a)laught b)laughing c)laughed d)to laugh 5. about when i entered the office? a)were you talking b) did you talk c) you talked d) had you talk 6.she tv since this morning a)watches b)was watching c)watched d)has been watching 7. his own. a)wasn't used to living b) didn't used to living c) wasn't used to live d) wouldn't used to live 8. his repaired at the moment a) is being b) was c) is d) will be 9. if study, you may fail the exam. a) don't b)hadn't c)doesn't d)weren't 10. there isn' left in the cup. a) many b) any c) no d) few