问题
Kangkang always likes chatting with their classmates ________ the Internet in his free time. [ ]
A: by
B: in
C: of
D:on
B: in
C: of
D:on
正确答案是：
同类题型
______ I know, many thousands of tourists from the Mainland have been to Taiwan. [ ]
_____is his coat？It is under the chair.
The little boy was heard_______ in the street when night fell down yesterday .
Did you go ___ ___ with your brother last weekend, Tina? –No ,we just stayed at home and watched TV.