Question

_______ is well known is ________ the Diaoyu Islands have been part of China since ancient times.

A．Which; that

B．That; which

C．What; that

D．That; what

Answer 1

C

考察名詞性從句。第一空What引導(dǎo)主語從句what is well known且在句中作主語。第二空that引導(dǎo)表語從句that the Diaoyu Islands have been part of China since ancient times.此句子結(jié)構(gòu)很完整，只需要使用that引導(dǎo)，that在句中不充當(dāng)任何成分，只起引導(dǎo)作用。句意：眾所周知的事情是釣魚島自古以來就是中國(guó)的一部分。故C正確。