He was too tired _____ doing his homework A.because of B.because C.so D.for
问题描述：
He was too tired _____ doing his homework A.because of B.because C.so D.for
答
D能否解析下for 是“对于”直译：对于完成他的作业，他太累了。意译：他太累了，以致于不能完成他的作业。