单项选择题
I have no objection () his staying in the classroom as long as he keeps quiet.
A.of B.to C.in D.over
单项选择题 -- There isn't any bread left.--Oh, () I'll buy some in the supermarket. I'm going there in a few minutes.
单项选择题 More and more people realize we won't have clean water to drink unless something () soon.
单项选择题 Many a girl () dancing and singing at the center of the stadium.
