住房公积金属于( )所有。
A．缴存住房公积金的单位及个人 B．缴存住房公积金的单位C．缴存住房公积金的职工 D．住房公积金管理机构
参考答案：C
It's quite warm here; we ________ turn the heating on yet . [ ]
A. couldn't
B. mustn't
C. needn't
D. wouldn't
_____ in a heavy rain, the teacher fell ill and couldn’t but ______ for a leave.
A．Caught; to ask
B．Catching; ask
C．Catching; to ask
D．Caught; ask
