—It’s getting cold.Would you mind________the window?—Of course not.A.closingB.to closeC.closed
There are about more than five ___________ "left-behind" students (留守学生) in China.
He doesn’t know _________ English because he has studied it for only ________ weeks
She likes musicians __________ write their own lyrics.
Jane studies chemistry ________ asking the teacher ________ help.
They would like to go _____________ for vacation.