–Where’s Carol?–I saw her _______ into the teacher’s office a few minutes ago.
–What should I do, doctor? --________ healthy, you should take more exercise.
Those two boys are twins, _______, they look very different.
— May I take the magazine out of the reading room?— No, you can’t. You ______ read it here. It’s the rule.
The West lake is so beautiful. I want to stay in Hangzhou for _______ two days.
The underlined part in the word “buses” is pronounced as_________.