They are afraid I'll be knocked down by a truck ,fall off a

They are afraid I'll be knocked down by a truck ,fall off a Sometimes I think this house will be knocked down by a passi Be careful.Don’t （ ） the ladder.A.fall off B.fall down C.fel 英语问题 He was knocked down by a car ----------（lucky),my friend ,Peter,was knocked down by a car nothing.of course.i'm so afraid.i'm really afraid.we'll be a I'll be down in a minute是什么意思 -----------,a car knocked her down. A.fall over B.fall off C.fall down这三个词什么意思 I’m afraid I won’t be available then.I _____ a friend off at 英语翻译I'll Be A Virgin,I'll Be A MountainMy thoughts are flowi I won't be free this afternoon.I'll be seeing a friend off.