1．(北京卷)Observe(observe) carefully if any change occurs when doing experiments in the lab.
2．(湖南卷)Make(make) what you’re doing today important, because you’re trading a day of your life for it.
3．Listen to the teacher carefully in class, or you can’t catch what he is saying.
4．(四川卷)Read this story, and you will__realize(realize) that not everything can be bought with money.
5．Start out right away, or you’ll miss the first train.
6．When you’ve finished with that book, don’t forget to put it back on the shelf, will you?
7．Mary, come(come) here—everybody else, stay where you are.
8．Let us take care of the house while you are away, will you?
9．(2019·天津一中期末)—Jack, water the flower today, will you?
—But, dad, I watered it yesterday.
