单项选择题

If a photographer wanted to take pictures of moving things in the year of 1840, he had to（）

A．watch lots of films
B．buy an expensive camera
C．stop in most cities
D．take with him other machines apart from film

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单项选择题
How many students were shot dead in 1997 in the US schools（）

A．9
B．10
C．12
D．22
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Rose: Hi, Lisa. What’s wrong with you（）. Lisa: No, I don’t. I’ve got the flu.
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