--- What do you think of the pollution in our city?--- It’s getting more and more serious, we must stop pollution _____ longer.
My schoolbag is the same ______ Kitty’s, but different ______ Tom’s.
—What _____ weather! We can’t go boating today.—I’m afraid we have to watch TV at home.
There were a lot of people in the park. We had ______ to take a rest, so we got very tired.
My mother _______if she ________ her work this week.
Lucy didn’t make mistakes in the math exam. She is _____ in my class.