英语高手来.对划线部分进行提问 1

问题描述:

英语高手来.对划线部分进行提问 1
对划线部分进行提问
The children are (playing games)
They were happy (this afternoon)
Mary bought a present for me last week
还有
My parents are going (to London) for their holiday
也要.

1、what are the children doing?
2、when were they happy?
3、what did Mary buy for me last week?
4、where your parents going for their holiday?