It is __________ to say "thank you" very often,even to family members.( )
A.politeB.rudeC.dangerousD.humorous
My computer has caught a virus and it has gone wrong.
______________________( )
A.I'm sorry to hear that.
B.Don't mention it.
C.It doesn't matter.
D.I'm sure it can work.
Oh! What's wrong with your finger?
I hurt it while I ___________ a model plane.( )
A.. madeB.was makingC.am makingD.make
Which of the following words can NOT be added the prefix "un_______" to give it the opposite meaning?( )
A.happyB.healthyC.usualD.polite
A black young man named Sheku Kanneh﹣Mason is _________ enough to show that people of colour can take on any challenge of classical music.( )
A.modestB.humorousC.confidentD.curious
Because of the flood, there are _________ tourists in that ancient town this year than last year.( )
A.moreB.mostC.fewerD.fewest