It's an unusual thing for us to find ______ UFO.A.a B.不填 C.a
It's an unusual thing for us to find ______ UFO.A.a B.不填 C.a
It’s _________unusual thing for us to find _________ UFO.(a,
It is _____ unusual thing for us to find _____ UFO.
it's hard ___a job.A.to look for B.to find C.to find out
It’s important for us to stay ______. A.health B.healthy C.h
It's time for us ( )goodbye to each other.A、say B、to say C、s
What's this?It's( ) UFO.A.a B.an C.the D./
What's this?It's ( ) UFO.A.a B.an C.the
Tom,it's your turn( )a story for us.A tell B to tell C telli
What's this in English?It'( )apple.A.an.B.a.C.不填 选哪个?
it's hard (to find) a job,为什么不能用to look for/to find out
It's not good for us to eat___ meat. A too much B too many C