—When are you leaving for Beijing?—Tomorrow morning. My train _____ at 10:00 am.
#103229
A
is left
B
was leaving
C
leaves
D
has left
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I ___________ to phone her all day, but whenver I phone her, the line is engaged.
#101328
A
tried
B
had been trying
C
have tried
D
have been trying
Experiments of this kind ___in both the U.S and Europe well before the Second World War. 
#102411
A
had conducted
B
have conducted
C
have been conducted
D
had been conducted
John _______ for London this afternoon and his flight _______ off at 18:20.
#101809
A
is about to leave; will take
B
is leaving; takes
C
is going to leave; is taking
D
is to leave; is about to take
Must I get through the business in one evening?  No, you ________.
#102724
A
mustn’t
B
haven’t
C
needn’t to
D
don’t have to