Taking a ( ) is expensive.
A: us
B: taxi
C: subway
A: us
B: taxi
C: subway
举一反三
- The taxi, bus, bike and subway are all the common means of _________.
- Although the subway is expensive, it is very convenient. A: 正确 B: 错误
- 中国大学MOOC: Although the subway is expensive, it is very convenient.
- Taking the subway in Boston can be a _________ experience. A: frustrated B: frustration C: frustrating
- ( ) is good for our health. A: Riding a bike B: Driving a ca C: Taking a subway