The news that he failed in the exam ____
问题:
The news that he failed in the exam _______ his unhappiness this morning.
A.accounted for
B.accounting for
C.had accounted for
D.to account for
The news that he failed in the exam _______ his unhappiness this morning.
A.accounted for
B.accounting for
C.had accounted for
D.to account for