问题
Is_______ necessary to learn anotherlanguage — I think so.
A: this
B:that
C:it
D:he
B:that
C:it
D:he
正确答案是：
同类题型
Excuse meYou shouldn’t smoke hereLook at the sign “NO SMOKING HERE”.–Sorry, I ________ it just now
The book which ________ at the end of last year turned out to be a great success in Shanghai. [ ]
The teacher asked us not to______ our books or dictionaries when we are in the exam.
I _________ have written to him because he phoned me shortly afterwards.