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---_____ did your uncle leave his hometown?---He ________ for nearly twenty years.
#41850
A
When; has left
B
When; has been away
C
How long; has left
D
How long; has been away
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China __________ the WTO and became a new member of it.
#36338
A
joined
B
join
C
will join
D
has joined
— Be careful! A car may hit you. — Thank you! I         I            so close to the road.
#41800
A
didn’t know; am standing
B
don’t know; am standing
C
didn’t know; was standing
D
didn’t know; would stand
Avatar is an interesting film. I ______ it twice already.
#42050
A
see
B
saw
C
have seen
D
will see
In his family           three people．
#40302
A
have
B
has
C
there is
D
there are
The train______ when we________ to the station.
#37961
A
was left; was getting
B
left; had got
C
had left; got
D
left; got