【单选题】
You must clean the classroom, ____ you?
【单选题】
Lets clean our classroom,________?
【单选题】
I must____________ you that if you do this again you will be punished.
【判断题】
A: Must I take a taxi? B: No, you must not. You can take a bus.
【单选题】
You must be careful when ___ on the highway.
【单选题】
____ it is you found, you must give it back to the person it belongs to.
【单选题】
Must I take a taxi?No, you _______. You can take my car.
【判断题】
A: I must apologize to you for the delay. B: You are welcome.
【单选题】
You must think of [填空] you can do for your parents.
【单选题】
A: Must I take a train? B: No, you [填空]. You can take a plane.