The helping program started two years ago.two years ago划线部分提问.急!

问题描述:

The helping program started two years ago.two years ago划线部分提问.急!

When did the helping program start?那个two years ago是说两天前,所以用When did吗?是的,还有用started 可以判断出来,这里用一般过去时态。