單項選擇題

This kind of material expands（）the temperature increasing.

A.to
B.for
C.with
D.at

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This is the student（）I know will pass the TOEFL test.

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This is Mr. Green and this is Mr. Brown.（）

A.How do you do
B.How are you
C.Fine, thank you
D.Hi, how are you getting on