There isn’t going to be any pollution in the future, _________?
I’m not sure,but he’s supposed________sometime next week.
—You must________the bottle before you take the medicine.—OK,I will.
—A number of foreigners come to see the Great Wall every year.—Yes.It’s not only famous and beautiful but also the________of China.
This computer can’t work________.It needs to be fixed.
In this country,it’s________to stick your chopsticks into your food.