题目内容

The prospect of employing nitrogen fixation in agriculture is _______.

A. appalling
B. gloomy
C. limited
D. promising

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If there is anything you are not clear about the device, ______ your inquiry to our head office.

A. address
B. ask
C. reply
D. open

Don't take his words ______. He's just cracking a joke.

A. legitimately
B. literally
C. largely
D. likely

[音频]Please give proper resonses.

A. It's over there.
B. Sorry to hear it.
C. That's all right.
D. It's wonderful.

Please give proper resonses.

A. Here you are.
B. It doesn't matter.
C. Yes, of course.
D. Thank you.