题干

—A number of people ________ learning English nowadays.
—Yes. The number of people who are learning English ________ increasing.
A.is; isB.are; are
C.are; isD.is; are
上一题 下一题 0.64难度 单项选择 更新时间:2014-12-15 10:18:34

答案(点此获取答案解析)