非谓语句子

there is noting ( A )but ( )down and wait for him ( ) back.
A to do sit to come B to do sit come C to do to sit to come D to be done to sit coming
为什么只能用A?B不对吗？

句型：there is nothing to do sth. but do sth.
故正确答案是A，另外还可以根据对等原则确定第二空：即sit come 和 wait for要形式一致。

her face lit up主句 she hearing her mother had come不是完整的句子 没有谓语动词 hearing是非谓语动词

语法规定wait for 后面的复合宾语中用带to的不定式 短语动词类似的还有：call on,long for,vote for..... 固定搭配do nothing...but结构后的不定式省略to 选A