【题目】They always (打扫教室)on Fridays.

【题目】This cake is__________you.(　　)

【题目】--How many crayons do you have? ( )

【题目】He is a good player. He plays hard.

【题目】I often (吃晚餐)at 6:40.

【题目】Dad is r_______ a book in the study.

【题目】Let him have a .

【题目】We like to work _____ groups. ( )

【题目】那是对的。

【题目】Where__________ my friends?(　　)