单项选择题

Environmental protection（）everyone's support.

A、calls for
B、calls forth
C、calls off
D、calls up

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单项选择题

It was John（）changed her mind so soon.

A、why
B、how
C、that
D、when

单项选择题

Hanna is a brave rider, but she rides（）of my colleagues.

A、more bravely
B、the most bravely
C、less bravely
D、the least bravely

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