Two weeks ago, I bought a bicycle. If you live in town, it is often faster than a car and you worry about parking.
A. must not
B. should not
C. don't have to
D. may not
网友回答
A. must not
B. should not
(答案→)C. don't have to
D. may not
解析：考察情态动词用法。Must not禁止，千万不能；should not不应该；don't have to不必；may not也许不；句意：两个星期前，我买了一辆自行车。如果你住在城里，自行车经常比汽车还有快，而且你不必担心停车的问题。根据句意说明使用C项。