Question

He failed the exam, ______ he tried his best.
A. because              B. though           C. So

Answer 1

B

試題分析：句意為：雖然他盡力了，但是還是考試不及格。because：因為，though：雖然……但是……，            So：因此。根據(jù)句意可知應(yīng)選B。