Question

He studied hard and later because a well-knoen writer,----his father expected. A that was what

B what was that c and which was D which was what

Answer 1

选D。
句子打字错误太多。应该为：
He studied hard and later became a well-known writer, which was what his father expected.
句意：他刻苦学习后来成了著名作家，这正是他父亲期望的。
which was what his father expected是非限制性定语从句，which指前面整个主句。

定语从句中what his father expected为表语从句，从句中expected缺宾语，所以连接词用what。

Answer 2

非限制性定语从句，用which，不用that，which引导的是表语从句，what指代后面的his father expected。
综上，选D

Answer 3

D

Answer 4

A

Answer 5

我选d