关键语法
(1)She was waiting for him________(go)home.
(2)When it rained yesterday,she________(walk)to school.
(3)What were you doing when you________(hear)the exciting news?
(4)Remember________(turn)off the TV when you leave the room.
(5)On this day,Dr.Martin Luther King________(kill).
(6)We were________(surprise)to hear that news.
(7)It has________(mean)to most Americans.
(8)They walked to school in________(silent).
(9)When I walked by the classroom,I heard the students________(read)books aloud.