Question

The reason       I have to go is        my mother is ill in bed.

A．why...why	B．why...because
C．that...because	D．why...that

Answer 1

D

試題分析：考查定語(yǔ)從句和表語(yǔ)從句：句意：我不得不走了的原因是我母親生病在床。the reason后面跟一個(gè)定語(yǔ)（從句），The reason is that my mother is ill in bed. 用why引導(dǎo)定語(yǔ)從句，第二空是表語(yǔ)從句的連接詞：原因是什么？是一個(gè)事實(shí)，這個(gè)事實(shí)用that引導(dǎo)，選D。