The use ofChinese by teachers in ______ English classroom must be restricted because itwill decrease _______ time when students are exposed to the English language

Let’s clean the classroom, ________?

Who is singing in the next room –––It_______ be Lucy. She has gone to Hong Kong.

The school was moved out of downtown as the number of students had grown too________．

Which do you like better, beef noodles or tofunoodles— I ______ beef noodles to tofu noodles. I used tohave them for breakfast.