—________ Mary ______ Alice has joined the music club because they have no time. —It’s a pity. A. Not only…but also B. Either…or C. Neither…nor
—Does your father still smoke? —No, he has succeeded in_____smoking for three years.
—How long have you been in Beijing? —_____
—How much is the white coat? —It’s_____yuan.
Our government should_____ measures to control the population.
The _____ population has caused many serious problems.