Chinese scientist Yuan Longping,renowned for developing the first hybird rice strain,died of organ failure at 91 May 22th,2021.
﹣﹣﹣Listen! Is that Linda playing the piano in the room?
﹣﹣﹣No. It be Linda, she has gone to London.( )
A.may notB.needn'tC.can'tD.mustn't
Don't today's work for tomorrow.Today's work must be done today.( )
A.put upB.put outC.put offD.give up
I tried calling you your phone was out of service.( )
A.andB.butC.soD.or
﹣﹣﹣Look! They are .
﹣﹣﹣Yes. We are proud of them.( )
A.man scientistB.women scientists
C.woman scientistsD.man scientists
Either the students or the teacher him very well.( )
A.knowsB.to knowC.knowD.knew