单项选择题There is an abundant supply of cheap labor in this country.()
A. a steady B. a plentiful C. an extra D. a meager
单项选择题The landscape can change abruptly after a rainstorm in the Great Sahara Desert.()
A. quickly B. completely C. gradually D. slightly
单项选择题I didn't help him. I would have however didn't have the money.
单项选择题I hope you have left none of your belongings in the hotel.()
A. documents B. possessions C. children D. clothes
单项选择题A lot of people could fall ill after drinking contaminated water.