My brother ( )[ride] a bike when it ( )[begin] to rain this afternoon.

分类: 作业答案 • 2022-01-04 13:07:00

问题描述：

My brother ( )[ride] a bike when it ( )[begin] to rain this afternoon.
括号中,应该用中括号中,哪个时态的动词.

答

was riding, began