可以加the，也可以不加，例如：

1.'I could take the subway and have David pick me up at the station.' — 'Nothing doing.'“我可以坐地鐵，然後讓戴維到車站接我。”——“不行。”

2.B: Yes. You'd better take the subway. It's fast and convenient.B：是的。你最好乘地鐵去，又快又方便。

3.You'd better take subway?你最好乘地鐵。

We go to the park to take the subway

我們乘地鐵去公園

We take the subway to go to the park

我們乘地鐵去公園