【題目】They always (打掃教室)on Fridays.

【題目】This cake is__________you.(　　)

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

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

【題目】I often (吃晚餐)at 6:40.

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

【題目】Let him have a .

【題目】We like to work _____ groups. ( )

【題目】那是對(duì)的。

【題目】Where__________ my friends?(　　)