As you can see the number of cars on our roadsrising these days.A. was keepingB. keepC. ke

问题补充：

As you can see，the number of cars on our roadsrising these days.

A. was keeping

B. keep

C. keeps

D. were keeping

答案：

A. was keeping

B. keep

(答案→)C. keeps

D. were keeping

解析：句意：正如你所看到的，路上汽车的数量近来一直在增加。the number表示数字谓语用单数，these days这些日子，表现在。所以选C 。

考点: 考查动词时态的用法。