题干

The river ________ at least 50 meters in width, but the ten-year-old boy can swim across it within minutes.
A.is measuredB.measures
C.is measuringD.is being measured
上一题 下一题 0.65难度 单项选择 更新时间:2018-09-22 10:53:34

答案(点此获取答案解析)