—Tom,turn off the tap.Don't leave it running.
— .( )
A.Better notB.Sorry,I will
C.Not at allD.You' re welcome
His mother won't be there,________ his father might.( )
A.andB.butC.or
_______ pleasant journey it is!( )
A.HowB.WhatC.What a
My best friend helps to ______ the best in me,as the saying goes.( )
A.bring outB.bring inC.bring up
Artemisinin _______ by Tu Youyou,a great Chinese scientist.( )
A.was inventedB.invented
C.has invented
As our children get bigger,our house seems to get ________.( )
A.the smallerB.smaller
C.smallest