The public transport system in Beijing is very good now, so there _____be any difficulty in traveling around the city.
Mr Smith, _____ of the _____ speech, started to read a novel.
She thought I was praising her son, _____ as a matter of fact, I was scolding him for his bad behavior at school.
The wreckage of something like a jet plain discovered in the heart of the desert is believed ______ a UFO and _______down for reasons still mysterious.
The goods on this counter ____ at a discount of 25%, like the typewriters, television receivers, dustbins, etc.
It is every citizen’s duty to go out to ______ the snow on the street______ it stops falling so as to make it convenient for traffic to pass. .