Question

He didn't come to school ( )he was ill

A.because B.because of C.so D.so that

Answer 1

A
因为病了，他没上学。because of+ 名词
He didn't come to school because of his illness.
赞同请采纳！

Answer 2

A.
because 因为 后面接句子，
because 因为 后面接名词 或者名词性短语，
so 因此，以至于 逻辑错误，
so that 因此，以至于 逻辑错误，后接从句。

Answer 3

because he was ill

Answer 4

A

he was ill 是个完整的句子了，所以B就不能选了，再从意思上选，他是因为生病才没有去学校的。