Make sure that you all the doors and windows before you leave the building. A.fasten B.tie C.draw D.match
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解答
Make sure that you _______all the doors and windows when you leave the room. A.will shut B.would shut C.shut D.have shut 选择 c 在短语make sure,see (to) it,be sure后接从句,通常用一般现在时表将来