(单选题)

It’s very cold outside. You’d better wear thick clothes, ______ you’ll have a cold.

A.and

B.but

C.or

D.so

参考答案：C

参考解析：

考查表示选择的连词or。句意：外面很冷。你最好穿厚一点的衣服，否则你会感冒的。and意为“和”，表示并列；but意为“但是”，表示转折；or意为“否则”，表示选择；so意为“所以”，表示顺承。分析句子前后的逻辑关系可知，此处应填入“否则”，相当于if not，即if you don’t wear thick clothes, you’ll have a cold。故选C。

知识点：

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