Mr. Zhao has taught in our school _____ 3 years ago. A. since B. for C. /
We all think that thecentury will bring us more hopes.
— I have justcup of milk forbreakfast. —That’s not enough.
—How many students are there in the classroom? —. They are all in the lab.
—You look worried. What’s your? —I have trouble learning English.
—Don’t take pictures here, please. —.