1.By this time tomorrow I ... for three hours.a)will flyb)will be

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 into...
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