当你向别人问路时,但别人不知道时,你应该说: A. Thank you all the same.B.I'm sorry.C.Don't thank you.
Everyone____happy! A.am B.be C.is
They pull Robin___the mud.( ) A.out of B.in C.of
Please___sit on me.( ) A.don’t B. not C.doesn’t
Robin is going to____on the grass.( ) A.sitting B.sit C.sits
It is a _____morning.( ) A.sun B.well C.sunny