题干

It was so noisy in the dining room that only by shouting ____ to make himself heard.
A.he has been ableB.has he been ableC.was he ableD.he was able
上一题 下一题 0.4难度 单项选择 更新时间:2011-12-14 06:39:58

答案(点此获取答案解析)