题目内容
（请给出正确答案）
A．it being completed
B．it completed
C．completed
D．it completes
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更多“Once ______ , this power stati…”相关的问题
The manager ordered the work__________
A．to start at once
B．to be started at once
C．start at once
D．started at once
A、having once been injured
B、having once injured
C、to have once been injured
D、to have once injured
______ was once regarded as impossible has now become a reality.
A．That
B．Which
C．Who
D．What
What city once experimented with a completely-free bus service？
A．London.
B．Rome.
C．Paris.
D．Stockholm.
The medicine was very _____, and he recovered at once after taking it.
A.efficient
B.good
C.effective
D.sufficient
As it is very ______, we must decide at once what to do.
A．eager
B．anxious
C．urgent
D．tense
Primary batteries of cells are those that, once ______, are discarded.
A．to be discharged
B．being discharged
C．discharged
D．discharging
Which of the following is NOT mentioned in the passage？
A．Da Vinci once stayed in France．
B．“Mona Lisa”is kept in the Louvre
C．The Louvre was once a church as well as a palace
D．The Louvre is a place of interest to different people from all over the world．
