—This is my sister Ann. 一Is______a student? A.she B.he C.her
—Either Laura _____ Amy _____ American. —Amy is.
— _____ does he live from our school? — About thirty minutes’ walk.
Tom usually gets up _____ half past six _____ Saturday morning.
Mr Green is our new teacher this term. He teaches _____ history.
We must protect (保护) animals like elephants, because they’re _____.