单项选择题

With the population explosion, scientists will have to（）new methods of increasing the world's food supply.

A. come up with
B. carry out
C. lead to
D. stick to

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单项选择题
What does the woman suggest that the man should do（）

A. Send gifts to Jane and her brother.
B. Do not get angry.
C. Send gifts to Jane’s brother.
D. Send gifts to Jane.
单项选择题
Where does the conversation most probably take place（）

A. In a supermarket.
B. In a bank.
C. In an office.
D. In a stock market.
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