My uncle is a writer. He ______ many books since he was young.
#36965
A
writes
B
wrote
C
is writing
D
has written
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That day I saw some parents____at the back of the classroom,___to the teacher .
#40201
A
sitting,listened
B
sat, listened
C
sitting,listened
D
sat,listening
He’ll send us a message as soon as he ________ in Sichuan. 
#39495
A
is arriving
B
will arrive
C
arrived
D
arrives
I ______ my mind to study harder since I visited the Shanghai Supercomputer Centre.
#37865
A
am making up
B
have made up
C
made up
D
had made up