单项选择题

You have to be patient if you want to sustain your position.（）

A．maintain
B．better
C．acquire
D．support

<上一题 目录 下一题>
热门 试题

单项选择题
A lot of people could fall ill after drinking contaminated water．（）

A．boiled
B．polluted
C．mixed
D．sweetened
单项选择题
It’s sensible to start any exercise program gradually at first．（）

A．workable
B．reasonable
C．possible
D．available
相关试题