问题

Susan thought ____not easy to answer all these questions.
A:it
B:that
C:them
D:this
B:that
C:them
D:this
正确答案是:
同类题型
My friend John insisted that he had seen ______ alien the day before.
About two _________boys took part in the running race.
I hopeimprove his English this year.
How can you make such tea?—Just let the leavesin the water of 75 for some time.
Did Aunt Li buy a skirt last Sunday?— Sure. She chose_________ one of the two green skirts.