题目内容
Tom didn’t go hiking with his classmates ____ his illness.
| A．because | B．because of | C．as | D．since |
B
解析试题分析：句意：汤姆没有和他的同学一起去旅行，因为他生病了。Because因为，后接从句；because of因为，后接名词性短语；as作为；since自从。结合题意故选B。
考点：考查连词。
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