Thetr afficwasheldupformorethanthirtyminutes,______causedmetoarrivelate.
A.it
B.that
C.what
D.which
正确答案:D解析:句意:交通堵塞了30多分钟,致使我晚到了。本题考查非限制性定语从句。选项中能引导非限制性定语从句的只有which。

Thetr afficwasheldupformorethanthirtyminutes,______causedmetoarrivelate.
A.it
B.that
C.what
D.which
正确答案:D