单项选择题

Once lost ().

A．it is hard to get such a chance again
B．to get such a chance will be difficult
C．one can never get such a chance again
D．such a chance might never come again

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热门试题

单项选择题

The brake of your bicycle has come loose. You'd better () it.

A．settle
B．fix
C．pick
D．correct

单项选择题

Our ancestors celebrated ()birth of () child by giving away red eggs.

A．the; a
B．the; the
C．/; a
D．/; the