If you want to become an effective impromptu speaker, you need to（） your energies and efforts in your speaking bank.

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If you want to become an effective impromptu speaker, you need to（） your energies and efforts in your speaking bank.

A.scenic

B.invest

C.flavors

D.subject

正确答案：B

Tag：英语口语直通车时间：2021-03-29 21:07:40

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