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If people keep _______ down the forests, they will have nowhere _______.
#50334
A
to cut, to live
B
cutting, to live in
C
to cut, to live in
D
cutting, to live
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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
The policeman warned the driver _______too fast. It was very dangerous.
#49600
A
to drive
B
not to drive
C
driving
D
not driving
Running in the morning can make me  ________ relaxed .
#50248
A
felt
B
to feel
C
feel
D
Feeling
—Peter has changed a lot, hasn’t he?—Yes. He used to        the guitar, but now he is more      in playing soccer.
#50388
A
plays; interested
B
play; interested
C
play; interesting
D
playing; interest
The doctor did what he could _____the dying man.
#50311
A
save
B
to save
C
saved
D
saving