Lately some scientists are experimenting ___________ white mice to ___________

Lately some scientists are experimenting ___________ white mice to ____________ this kind of medicine.

#27470

on,try on

with, test on

on ,test out

with,carry out

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We stayed at home ________ the rain .

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because of

because

since

______ some injuries to his face and hands, he broke both legs.

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Except

Except that

But for

Apart from

We must show concern ______ each other.

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with

for

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from

after

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in praise of

in search of

in honor of

in favor of

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