单项选择题

The protection (of) our environment (is) not (nothing) to be left to the government. Everyone should (be concerned).

A．of
B．is
C．nothing
D．be concerned
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单项选择题
(Of) the two coats, (I’d choose) (the cheapest) one to spare some money (for) a book.
A．Of
B．I’d choose
C．the cheapest
D．for
单项选择题
The young man, (to make) several attempts (to beat) the world record in high jumping, (decided) to have (another try).
A．to make
B．to beat
C．decided
D．another try
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