单项选择题

A great many cancers can be cured but only if ______ before they have begun to spread or "colonize" in other parts of the body

A．properly treat
B．properly treating
C．being properly treated
D．properly treated

<上一题目录下一题>

热门试题

单项选择题My car ______ so I had to come by bus.

单项选择题I am not of those people who like a strenuous(费力的) holiday; I believe in ______ .