When did the classroom have a power cut?
This morning,while we ________ a physics lesson.( )
A.have hadB.were having
C.are havingD.will have
Buses stop when the traffic lights turn red.( )
A.canB.mayC.must
room looks very clean.( )
A.Bob and Dave'sB.Bob's and Dave's
C.Bob's and Dave
﹣ dictionary is this?It's very nice.
﹣I think it is Mary's.( )
A.WhoB.WhoseC.Whom
They often have three meals day. They have dinner at 6:30 pm every day.( )
A.a;aB.a;theC.a;不填
All the classmates enjoyed the cake _________I made at the party. It was really delicious( )
A.thatB.whoC.what