_________ of the population in this area __________ farmers.A. Two thirds ,are B. Two thirds, is C. Two third, is
Tony never spends money on traveling____ he likes staying at home.
________ is not an easy thing for everyone to master a foreign language.A. That B. This C. It
The problem must be __________ discovered next time.A. farther B.far C.further
The doctor was busy _________ on the woman at that time.A. operating B. operated C. to operate
Chinese _________ by Miss Wang three years ago.A. taught B. was taught C. is taught