make sure后加什么时态
make sure 如果是现在时，或者祈使句形式(原形)，that从句的时态应该使用现在时间范畴的时态，如一般现在时，现在进行时，一般将来时等。
make sure 除了接从句外，还可以接不定式，但不能接动名词。
They want to make sure the newcomers don\'t get a look-in.
他们不想让新人有露脸的机会。
Make sure the draining board, sink and plug hole are regularly disinfected.
滴水板、水槽和塞孔一定要定期消毒。
Make sure to give positive feedback when they show signs of improvement.
确保一旦他们有改进时,你都能给予积极的回应。
If you saw a traffic accident, make sure to mark down the licence of the car.
如果你看到交通事故, 务必记下汽车的牌照号码。