Question

　　 Mother made a promise ____ I passed the college entrance examination she would buy me a mobile phone.

　　A. that   B. if that   C. that if   D. that whether

Answer 1

選C。

解析:

名詞promise后是同位語從句，用that引導(dǎo)；if引導(dǎo)條件狀語從句。