You should move back and forth while _______ basketball.
#50269
A
to play
B
playing
C
are playing
D
plays
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 I really don’t know____________.
#50551
A
how to do
B
what to do
C
what should I do
D
how I should do
 How happy we were        each other !
#49780
A
to see
B
seeing
C
saw
D
have seen
 We will spend our summer holiday in Guilin, but we haven’t decided______________.
#51325
A
what to buy
B
where to go
C
how to go
D
which to choose
If you want to make yourself _____, you should speak clearly and slowly.
#48958
A
understand
B
understood
C
to understand
D
understanding