It’s two and a half weeks since the exchange students __________ Wuxi.
#41945
A
arrived
B
reached
C
have been in
D
have arrived in
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When I got there, the train _____________.
#39994
A
has left
B
left
C
had left
D
have left
By the end of last month, I _____ all the CDs of Justin Bieber.
#42234
A
collect
B
collected
C
have collected
D
had collected
I  _____ to you as soon as I get there.
#41999
A
write
B
wrote
C
have written
D
will write
I _________ my mum cook dinner in the kitchen when the telephone ______.
#37803
A
helped; was ringring
B
helped; rang
C
was helping; rang
D
was helping; was ringing