主语从句练习题,给一些详细的解析19._____ is troubling me is that I don’t have much experience in international commerce.DA.It B.That C.Which D.What20._____they wil go there to try another experiment has not been decided yet.AA.Whether B.If C.About whether D.Why 麻烦给个详细的点的解析,比如第一题为什么选D,为什么不选别的.
问题描述：
主语从句练习题,给一些详细的解析
19._____ is troubling me is that I don’t have much experience in international commerce.D
A.It B.That C.Which D.What
20._____they wil go there to try another experiment has not been decided yet.A
A.Whether B.If C.About whether D.Why
麻烦给个详细的点的解析,比如第一题为什么选D,为什么不选别的.
答
19. 注意句子有两个is, 从句子结构和意思来看的话,it, that 直接被排除,which意思不对,所以正确答案就是what了.
20. A 他们会不会去那里尝试另一个实验还没有决定.在句首,用whether不用If. C 没有这个组合在句首出现,口语中有可能.D 语义不符.