I was doing...

例句:

I was watching TV from seven to nine last night.

昨天晚上七点到九点的时候我在看电视。

I was playing football when they came to my school

当他们来我学校的时候我正在踢足球

I was wondering if you could give me a lift.

我在想你能否帮我个忙

I was having a talk with Li Hua at that time.

那时，我正在跟李华谈话。