Ladies and gentlemen,please fasten your seat belts,the plane______.
#101863
A
takes off
B
is taking off
C
is going to take off
D
is to take off
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—I’ll come to attend your speech at 9:00 tomorrow morning. —I’m sorry. By then my speech _________ and I __________ TV at home. 
#102829
A
will end; will watch
B
is to end; will watch
C
will be ended; am going to watch
D
will have ended; will be watching
 ——Guess what!I met an old school friend last week.­——How nice!How long____ each other?
#100091
A
didn't you see
B
haven't you seen
C
hadn't you seen
D
don't you see
Up to now, he _______ most of the works by Mark Twain.
#102590
A
is reading
B
has read
C
will read
D
reads