Question

John got his phone for his birthday,       his parents don’t let him use it in school. 

A．however

B．which

C．but

D．when

Answer 1

C

本題考查連詞。However然而，可是；which哪一個；but但是； when既然，當……時候。句意：約翰生日得到一部手機，但是他父母不讓他在學校里使用。用于句子中間時，but之后一般不得使用逗號，而however則必須用逗號與句子其它部分分開。故選C。