Look! Jack and his monkey _________ flying disk together in the garden. 
#42280
A
is playing
B
was playing
C
are playing
D
were playing
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Great changes __________ in China in the past few years.
#36358
A
were taken place
B
took place
C
have been taken place
D
have taken place
By the end of last term we ___________ about ten English songs.
#41740
A
had learned
B
have learned
C
learned
D
were learning
He promised to pick me up at the school gate. However. he    __ yet.
#42316
A
didn’t arrive
B
doesn’t an’lye
C
isn’t arriving
D
hasn’t arrived
I __________ the CDs to you if I have time tomorrow.
#39710
A
will return
B
returned
C
have returned
D
return