Tomdidn’tgohikingwithhisclassmates

问题详情：

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

            A. because                B. because of              C. as                            D. since

【回答】

B    A、C、D都可用来引导原因状语从句，后面跟句子；because of后跟表原因的名词*短语。故选B。

知识点：连词

题型：选择题