Something ___ to save our earth. Do you think so?A.can doB.must doC.has to doD.m
题型:不详难度:来源:
Something ___ to save our earth. Do you think so?A.can do | B.must do | C.has to do | D.must be done |
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答案
D |
解析
something must be done意为:必须采取措施. |
举一反三
I can’t find my English book. I must ___ it at home this morning.A.forget | B.leave | C.have forgotten | D.have left |
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We ___ to the farm last week.A.had | B.needed to | C.didn’t | D.had to go |
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