Question

【题目】In the United States, they are expected to shake hands.

A.be supposed toB.should to

C.is supposed toD.are supposed to

Answer 1

【答案】D

【解析】

句意：在美国，他们应该握手。

考查动词短语。be supposed to应该做某事；should to语法错误；is supposed to应该做某事，主语是单数； are supposed to应该做某事，主语是复数。be expected to do相当于be supposed to，主语是they，be动词用are。根据题意，故选D。