【题目】Generally, teachers ________ to know a lot and have answers to all questions from students.

【题目】—Dad, the lock of my room is broken.

【题目】Kevin is really a ________ boy. His room is always in a mess, and he never tidies it up.

【题目】There is going to be a ________ among boys. Then we'll know who runs fastest.

【题目】—Could you please tell me ?

【题目】China national women’s volleyball team the world champion for many times.

【题目】— Mum, when can we eat?

【题目】Sarah to a concert during her stay in Shanghai last month.

【题目】The air this year is much than that of last year.

【题目】We won’t drive to the mountains tomorrow if it .