We have worked so long.Shall we stop ______ a rest?( )
A.haveB.to havingC.havingD.to have
Will you stay here for dinner with us?
Sorry, I ____________. My mother is waiting for me at home.( )
A.mustn'tB.can'tC.needn'tD.couldn't
What do you think of working as a doctor?
It 's a good job to help people keep___________.( )
A.busyB.strictC.healthyD.generous
Betty has a beautiful _________. She wants to be a singer in the future.( )
A.voiceB.lookC.noiseD.sound
Oh. my God! I forgot to bring my pen here.
Don't worry. I have two. You can use __________.( )
A.IB.meC.myselfD.mine
To save time, many students have _________ lunch at school every day.( )
A.aB.anC./D.the