1. They can’t buy a car now, but they [?] buy it in three months.
2. The sick man can sit up today, but he [?] do it yesterday.
3. She says I must do it at once, but yesterday I [?] do it just as quickly.
4. He must get up early this morning, but he [?] get up so early tomorrow.
5.She can hardly speak today because of her sore throat. I’m sure she [?] sing tonight.
6. She needn’t come here again this evening, but she [?] yesterday.
7. We needn’t paper the walls this year, but we [?] paper them next year.
8. The child can talk now, but two months ago he [?] speak only a few words.
9. I can’t come right now, but I [?] come in an hour.
10.They [?] lend me any money last week, but they can lend me some now.
11. I can’t believe such stories, but I [?] believe them when I was a child.
12. I must answer a lot of questions, but I thought I [?] answer any.