In China, people usually _____ their houses to sweep away bad luck before Spring Festival.
clean up
look up
make up
put up
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
Yao Ming, a basketball giant , ___________ water polo when he was young.( )
A.is playingB.used to play
C.is used to playingD.was playing
When I think of the worried _______ of foreign students who are learning Chinese, I can go to study English calmly.( )
A.looksB.designsC.effortsD.needs