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五、设有关系模式R(A, B, C, D), F={AB → C, C → D, D → A}

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________(天气如何）this summer in Qingdao?

A. What does it look like
B. What's it look like
C. What weather does it like
D. What's the weather like

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It’s sunny and clear these days. And________（气温舒适）.

A. the temperature is good
B. the weather is cozy
C. the temperature is comfortable
D. it is good temperature

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________(预计有微风）the next two days.

A slight wind is due to
B. A light wind is expected for
C. A light snow is wished for
D. a slight wind is expect to

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Let me ________（下载和安装一个非常好的天气应用软件）on your phone. Then you can get 10-day forecasts.

A. download and install a very good weather App
B. upload and install a very good weather App
C. load and set a very good weather application
D. load and install an excellent Apply

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