单项选择题

The police are _________for the preservation of public order and security.

A．responsible
B．suitable
C．accessible
D．indispensable

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单项选择题

My grandma has kept her _________refrigerator for thirty years.

A．first large grey American
B．first grey large American
C．first American grey large
D．large grey American first

单项选择题

Jason did everything in his _________to comfort his girlfriend because of her failure in the contest.

A．ability
B．power
C．possession
D．strength

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