单项选择题

A.be collectedB.must be collectedC.is collectedD.can be……

It is very important that enough money （）to fund the project.

A.be collected
B.must be collected
C.is collected
D.can be collected

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单项选择题My English teacher warned me（）Chinese in the classroom.

A.to not speak
B.don’t speak
C.to speak not
D.not to speak