___ is the most useful invention?A．Do you think which of theseB．Which of these y

题型：不详难度：来源：

___ is the most useful invention?

A．Do you think which of these	B．Which of these you know
C．Which of these do you know	D．You know which of these

答案

解析

考察句型，do you know是插入语，与句子结构无关，放在句中。
句意为，你知道这些发明里面哪个是最有用的发明？

举一反三

How can I help them to understand ___ they won’t listen to me？

A．while

B．even though

C．when

D．as if

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______ really matters in sports is not the winning, but the taking part.

A．What

B．That

C．It

D．How

题型：不详难度：| 查看答案

The prize will go to the writer______ story shows the most imagination.

A．that

B．which

C．whose

D．what

题型：不详难度：| 查看答案

Mencius believed that the reason why man is different from animals is______Man is good.

A．that

B．what

C．why

D．whether

题型：不详难度：| 查看答案

As a child , Jack studied in a village school ,_____ is named after his grandfather.

A．which

B．where

C．what

D．that

题型：不详难度：| 查看答案