题目内容
—Look! Some of the children _____ in the river.
—Oh, it’s dangerous to do that. We must _____ them.
A. is swimming, stop B. are swimming, stop
C. are swiming, to stop D. swimming ,stopping
练习册系列答案
相关题目
题目内容
—Look! Some of the children _____ in the river.
—Oh, it’s dangerous to do that. We must _____ them.
A. is swimming, stop B. are swimming, stop
C. are swiming, to stop D. swimming ,stopping