昨天的这个时候她正在看书。

She was reading a book at this time yesterday.

youdao

当我走进办公室的时候，她正在看书。

I saw them walk into the office and sit down just now.

youdao

她正在看书，但电话铃一响，她就把书搁到一旁。

She was reading a book, but set it by when the telephone rang.

youdao

她此刻正在看书。

She is reading a book at the moment.

youdao

看，大卫正在看黑板。他能看见一位女孩在看书，她没有看电视。

Look. David is looking at the blackboard. He can see a girl. She is reading books. She isn't watching TV.

youdao

看，大卫正在看黑板。他能看见一位女孩在看书，她没有看电视。

Look. David is looking at the blackboard. He can see a girl. She is reading books. She isn't watching TV.

youdao