问题

The kind lady devoted all her life to _____ those homeless children.

A:help
B:helping
C:be helping
D:being helped

正确答案是：

同类题型

I play the piano when I was a young boy.

下列各句中，没有语病的一句是（）

How’s everything going— ____.

My brother can ________ well. He wants to join the _______ club.

How does he go to Chong Qing —________________.