1.He helped me _____my lost book.
A found B find C finding D finded
为什么不选C,只选B,能说出理由吗?
2.we had great fun ______in the water.
A play B to play C plays D playing
选D. 这句子上说不出在什么情况下加ing呢?
3.I found a girl crying(cry)in the corner because she lost her way home.
Found是过去式后面为什么动词加ing?
4.She has great fun playing(play)in the snow with her classmates.
这句子上说不出在什么情况下加ing呢?