情态动词：表示忠告的3个小词

表示忠告：should, ought to, had better

1. You should study harder.

2. You ought to study harder.

3. Drivers shoud obey the speed limit.

4. You shouldn't leave your keys in the car.

5. I ought to (otta) study tonight, but I think I'll watch TV instead.

6. The gas tank is almost empty. We had better stop at the next service station.

7. You'd better take care of it.

8. You'd better not be late