---Where is your father?---He isn’t here. He __________ Yushu to help the people in trouble.
#41976
A
has gone to
B
has been to
C
went
D
is going
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The plane ______ when we got to the airport.
#42861
A
had taken off
B
was taken off
C
will take off
D
is taking off
The school day ______ at half past seven every morning.
#41998
A
is begin
B
begins
C
is beginning
D
begin