这个空添什么?为什么?they found ____ a serious problem that some people dig sand to sell for money on the bottom of the river.A it B this C that D them我这上面答案是C为什么都选A 最好把这个句子结构分析下

这个空添什么'谢谢'初一英语 这个空填什么 这个空写什么 这个空填什么! 这个空填什么 They were all in their nightclothes ____I was.中间这个空应该填什么? they go to bed at ten o'clock b____.这个空填什么? Are those girl's c____?Yes,they are.They are nice.求这个空填什么单词. 这个空添什么?为什么?they found ____ a serious problem that some people dig sand to sell for money on the bottom of the river.A it B this C that D them我这上面答案是C为什么都选A 最好把这个句子结构分析下 Just as the train was____,they saw it.这个空的正确答案是to leave,为什么不是leaving? 请问这个空什么英语单词 Plants need 二氧化碳when they grow,so they can make二氧化碳 ____(少) in the air.这个空为什么填less而不是a little呢? they clean keep streets the.连词成句JOY is wearing a new dress .( ) nice!这个空填什么 英语首字母拼写Were you invited to their w___ when they married?这个空填什么单词 w开头的 The s___ in this copany are all dressed neatly,and they are friendly to people.这个空填什么? the volunteers are doing___ important work；they share___commom goal to help people in need为什么第一个空什么都不填呢? last night ,he couldn't _____ (sleep)well这个空应该填什么?为什么? they are()()(听)the radio空格里填什么