1.I am a student.
2.I am a Chinese.
3.I like learning English.
4.I was doing my homework at eight.
5.I did my homework yesterday.
6.I have already read this book.
7.I will go to BeiJing next week.
8.I will call you as soon as I arrive.
9.I am doing my homework.
10.He told me he would leave.
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