问题

He is fluent in Englishbecause he once stayed in London —- Really How long_________ there

A:it
B:which
C:what Dthat
D:that

正确答案是：

同类题型

Excuse me, please look at the sign “No Smoking”. —Sorry, I _____.

You speak very good French! — ThanksI _____ French in Sichuan University for four years.

下列各句中，没有语病的一句是（）

Your name again, please ___________ — It’s Bell Green.

The students were all tired but ________ of them stopped ________.