题目内容

The level of __________ in the river was falling.

A．Population
B．prescription
C．Presentation
D．pollution

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These people are very efficient, very ___________ and excellent time managers.

A．Organised
B．organiser
C．Organise
D．organisation

She was on the point of going out _________ the telephone rang.

A．While
B．when
C．As
D．the moment

Time _________, we will pay a visit to him before we leave.

A．Permit
B．permitted
C．to permit
D．permitting

How many members have __________ registered in the club?

A．Officially
B．official
C．Office
D．officer