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cho minh xin dap an bai nay voi lim ( can bac hai ( x+1) - can bac hai ( x-1)) * can bac hai cua x
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Exercise 1. Combine these sentences, using “ too… to ” or “ enough… to ” 1. These oranges are ripe. You can eat them. 2.He is strong. He can carry this table. 3. The house is large. My family can live in it. 4.It was very late. They didn’t go to the party. 5.The dress is so dirty. She can’t wear it. 6.She is tall. She can reach the top shelf. 7.Mr Brown isn’t rich. He can’t buy car. 8.My grandmother is very weak. She can’t lift the box. 9.The film is very good. The children won’t miss it. 10. Those shoes are large. You can wear them. Exercise 2. Combine these sentences, using “ …too + adj + for + …+ to-inf ” 1.The child can’t drink this milk. It’s too hot. 2.We can’t lift this weight. It’s too heavy. 3. They can’t push the piano through that door, it’s too narrow. 4.You can’t hang the picture on that wall. It’s too small. 5. She can’t watch this programme. It’s too boring. Exercise 3. Combine these sentences, using “ adj + enough + (for) + to-inf ” 1.You shouldn’t wear this coat in winter. It’s not warm enough. 2.Don’t stand on that chair. It’s not strong enough. 3. You can’t sleep in this bed. It’s not wide enough for you two. 4. I couldn’t make coffee for everyone. There weren’t enough cups. 5. He didn’t finish the examination. He didn’t have enough time.

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