CharlesSmith,______wasmyformerteacher,retiredlastyear.
A、whichB
that 不能引导非限制性定语从句 , 可以用 which 和 who 引导 , 其中 , who 代替的先行词是人。句意为：查理 ?史密斯去年退休了 ,他曾经是我的老师。
Heblamedhispoorperformance_____jetlag.
I'd like to remind you that there is no_____on the part of suspects to answer questions.
It is no use arguing _______ the plan because it has been rejected.
It took me a month to get rid _______ the cough.
The professor asked a question, and David ________ a good answer.
