Yesterday our headmaster made a speech ______ environmental protection, and we learned something about recycling of waste.( )
A.onB.atC.to
There will be more and more robots going into people's homes.
.We might be able to leave all the chores to them.( )
A.Not reallyB.No way
C.You're kiddingD.I hope so
The firemen did all their best to put out the fire.
excellent firemen!( )
A.WhatB.What anC.How anD.How
Learning to love is like learning to walk.
Yes, we step out bravely,we'll find it's not so difficult.( )
A.as ifB.even though
C.as long asD.as far as
When are we going to see the movie ZooTopia,this afternoon or tonight?
is OK.I'm free today.( )
A.EitherB.NeitherC.BothD.All
Attention,please!I have good news for you about your flight.
?( )
A.What are theyB.Where is it
C.How are youD.What is it