题目内容
We all think ________ our duty to help whoever are weak in their studies.
[ ]
A.it
B.that
C.that is
D.of it
答案:A
提示:
提示:
|
本句中it为形式宾语,而真正的宾语应为to help who ever are weak in their studies。 |
练习册系列答案
相关题目