问题
选择题
—He should have come to join in the thorough cleaning.
—He ________, I think. It's not his turn.
A．needn't have to
B．needn't have
C．didn't have to
D．doesn't need to
答案
答案：C
“他本应该来参加大扫除的。”“他不需要来，没轮到他。”A项表示“本不需要来，但他来了。”D项时态不对。