A human case of H7N9 was reported in 2014 when a woman______ to be infected with the bird flu virus.

A. confirmed B. had been confirmed

C. was confirmed D. have confirmed

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注意：詞數(shù)100左右。

開頭已經(jīng)給出，不計入總詞數(shù)。

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Dogs wag (搖擺) their tails in different directions depending on whether they are excited and wanting to move forward or threatened and thinking of moving back, a study has found.

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1.The video cameras were used to catch the dogs' responses because ________.

A．it was easier to catch the dogs' response changes in the tail wagging

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C．they enabled the dogs' owners to know about their dogs' habits

D．the dogs wagged their tails in different directions when they were in different moods

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C．excitement D．interest

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4.The underlined word “they” in the last sentence refers to ________.

A．the dogs B．the trainers

C．the systems D．the researchers

5.The purpose of doing the experiment is ________.

A．to train dogs for their owners

B．to help people judge the mood of dogs

C．to help dogs find company

D．to help people choose their pet dogs

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As one of the world’s oldest holidays, Halloween is still celebrated today in several countries around the globe, but it is in North America and Canada that it maintains its highest level of popularity. Every year, 65% of Americans decorate their homes and offices for Halloween. Halloween is the holiday when the most candy is sold and is second only to Christians in terms of total sales.

Austria

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Belgium

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Canada

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C. These items are just for fun

D. The other items can replace them

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