We’ll do what we can ________

We’ll do what we can _________ our environment.

#49518

protect　

to protect　

be protected　

be protecting

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—Do you like swimming?—Yes, swimming is a good way _______ fit.

#50134

keep

to keep

keeping

keeps

Please stop________ . I can’t hear __________ .

#49658

making any noise; what did the man say

to make any noise; what the man spoke

making any noise; what the man said

to make a noise; what the man talked with

It’s time for class . Let’s stop          .

#49716

talk

to talk

talking

not talk

If you are tired, please stop    a rest.

#49709

have

to have

having

has

Susan tries ________ English. But she often forgets ________her English book.

#50298

to learn,to bring

to learn,brought

learning ,bringing

Learning, to bring

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