例句:I am tired.(He is tired)
解决：
1.I may come next week.
2.I do a lot of work every day.
3.I did a lot of work yesterday.
4.I palyed football yesterday.
5.I have had a letter from Tom.
6.I was busy this morning.
7.I could play football very well when I was younger.
參考答案:1.He may come next week.
2.He does a lot of work every day.
3.He did a lot of work yesterday.
4.He palyed football yesterday.
5.He has had a letter from Tom.
6.He was busy this morning.
7.He could play football very well when he was younger.