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.she tv since this morning a)watches b)was watching c)watched d)has been watching