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I catch cold now and then.
A.alwaysB.occasionallyC.constantlyD.regularly
B

试题分析:句意:我有时会感冒。now and then偶尔,有时;A. always常常,总是; B. occasionally偶尔;  C. constantly不断地; D. regularly定期地。因为这里叙述的感冒的频率,如果是常常的,这里有两个选项AC都对,选项D定期地,因为感冒不会定期地来,故猜测出答案为B正确。
考点:猜测固定短语的意义
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