问题
Many experts considered _________ quite necessary for the people in the earthquake-hit areas to be given a lecture on psychological comfort.[ ]
A: that
B: it
C: this
D: one
B: it
C: this
D: one
正确答案是：
同类题型
Only when we have strong confidence, courage and strength, ________ overcome all the difficulties.
It’s such a beautiful day. Why not have apicnic with us—_____. But I have a lot of homework to do.
Some clothes are too small for me, what should I do—You can____________ to the charity.
While I was standing ______the window, I saw several boys running _______the street.