is known to us all, the earth is round.That is to say is known to us a

题型：不详难度：来源：

is known to us all, the earth is round.
That is to say is known to us all is that the earth is round .

A．As, what

B．As, as

C．what ,as

D．What ,what

答案

解析

略

举一反三

It is really hard to find a nice place in this city we can have a picnic.

A．where

B．that

C．which

D．when

题型：不详难度：| 查看答案

A new library is being built _______ there was a playground .

A．that

B．in which

C．where

D．when

题型：不详难度：| 查看答案

is well-known, China is a country.

A．It; developing

B．As, developed

C．That; developing

D．As; developing

题型：不详难度：| 查看答案

______ is known to everybody, Taiwan is a part of China. We must unify it.

A．It

B．As

C．That

D．What

题型：不详难度：| 查看答案

This is the very spot ___________gold was discovered long ago

A．where

B．which

C．when

D．what

题型：不详难度：| 查看答案