25.the boy is tall.he can reach the top shelf 26.those shoes are large.you can wear them 27.your brother was clever.he could do this exericise in a few minutes 28.we weren't early.we couldn't see the first part of thr play 29.she has much money.she can buy that dictionary 30.the children were very eager.they started playing without me 31.she isn't old.she can't stand on that chair

Để trả lời các câu hỏi trên, chúng ta cần chuyển đổi các câu sau từ dạng khẳng định sang dạng phủ định bằng cách sử dụng " can't" hoặc " couldn't"

25. The boy is tall. He can reach the top shelf.
=> The boy is tall. He can't reach the top shelf.

26. Those shoes are large. You can wear them.
=> Those shoes are large. You can't wear them.

27. Your brother was clever. He could do this exercise in a few minutes.
=> Your brother was clever. He couldn't do this exercise in a few minutes.

28. We weren't early. We couldn't see the first part of the play.
=> We weren't early. We could see the first part of the play.

29. She has much money. She can buy that dictionary.
=> She has much money. She can't buy that dictionary.

30. The children were very eager. They started playing without me.
=> The children were very eager. They didn't start playing without me.

31. She isn't old. She can't stand on that chair.
=> She isn't old. She can stand on that chair.

She has much money, so she can buy that dictionary without any problem.

We weren't early, so we couldn't see the first part of the play.

Your brother was clever, that's why he could do the exercise in just a few minutes.

The shoes are large, so you can wear them comfortably.