Experts have been warning___of the health risks caused by passive smoking.

Experts have been warning___of the health risks caused by passive smoking.

#28210

at a time

at one time

for some time

for the time

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The Smiths are praised _______ the way they bring up their children.

#25746

from

for

--- I find our teacher is rather strict ___________ us.----Actually, my boy, your future boss will be cruel _________ you.

#25977

with/ to

in/ with

about/for

to/for

 ________ the crisis of economy getting more and more serious, the government is searching for ways to improve people's life.(2013·扬州调研)

#25349

With

When

—I’m going to cut the big tree down? —What ________ ?

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with

Who is it up  ________ decide whether to go or not?

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to to

or for

to for

with to

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