Question

Tom didn’t go hiking with his classmates ____ his illness.

A．because

B．because of

C．as

D．since

Answer 1

B

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。