题目内容

_______ is the most useful invention?
A.Do you think which of theseB.Which of these do you think
C.Which of these you thinkD.You think which of these
B
考查插入语。do you think是插入语,去掉后不影响句意,当that后用特殊疑问词时,不能省略that,A项错。故选B。
练习册系列答案
相关题目

违法和不良信息举报电话:027-86699610 举报邮箱:58377363@163.com

精英家教网