3. The children couldn’t go swimming because the sea was rough.
The sea was too _________rough ___________.
4. Nobody has used this car for years.
This car __________hasn't been used for years__________.
5. Unless he studies hard, he won't succeed in the next exam.
If he __________doesn't study hard, he won't succeed in the next exam__________.
6. Ho Chi Minh City is busier than all the other cities in our country.
Ho Chi Minh City is the _______busiest city in our country_____________.
7. Watching a football match doesn't interest him.
He isn't ______________interested in watching a football match______.
8. Jane doesn’t sing as beautifully as Jackie.
Jackie sings _____________more beautifully than Jane_______.