题目

Mr.Baker suggested the materials referred ________ used in our experiment.
A.to be B.should be C.have to be D.to have been
Why do you want to get such an expensive walkman ________ you've had a good one already?
A.that B.as C.which D.when
答案分别是to be 和 when.求分析..

提问时间：2021-04-01

答案

1.这里其实省略了should,完整的表达应该是：Mr.Baker suggested the materials referred to (should) be used in our experiment.在suggest的从句中,我们往往省略should,另外refer to是固定搭配,表示“提到的”,修饰...