—This is my sister Ann. 一Is______a student? A.she B.he C.her
— _____ do you _____ math? —I like it a lot.
The teacher often says, “ _____ late for class.”
There is a policeman _____ the bus. He is watching the traffic.
—How long can I _____ the book? —For four days.
— _____ —Go down this street to the end.