Question

我要去美国。

Answer 1

1. He had taken the exam last year.   他去年已经考过这个试。

2. I had been to America. 我曾去过美国。

3. They had visited a doctor.  他们已经看过医生了。

4. A thief had stolen my watch. 小偷偷走了我的手表。

5. It had rained heavily last month.  上个月雨下得很大。

6. The students had gone before the teacher came in.   老师进来以前学生们已经走了。