【题目】We’d better go home right now.The sky is getting .I think it’s going to rain.
A.blueB.clearC.greyD.bright
【题目】Do you know that the Earth is home to animals?
A.millionB.millions
C.million ofD.millions of
【题目】He was very tired so he stopped football.
A.to playB.play
C.playingD.plays
【题目】Las Vegas is very beautiful.I decided to here for another two days.
A.leaveB.move
C.arriveD.remain
【题目】
A.Last year.B.Yes,I did.
C.Thank you.
A.Yes,I have.B.I don’t know.
C.You’re welcome.
A.What’s next?B.Sure,I’d like to.
C.It is a secret.
A.Three hours.B.Thank you.
C.1,700 metres wide.
A.On foot.B.Once a week.
C.Maybe.
【题目】It's impolite to________your teachers' office without knocking at the door．
A.describeB.checkC.chooseD.enter