使用者17539796704072021-12-31 22:42:38

“what”可以引導所有名詞性從句。

例如：What is known to everyone is that the earth goes round the sun。 此句中what引導主語從句；The first settlers reached what we call America now。 此句中what引導賓語從句；He is not what he used to be。 此句中what引導表語從句；The suspect hasn‘t answered the question what he was doing at that time。 此句中what引導同位語從句。