单选题 ---May I help you with your ______? ---No, thanks. I can do it myself.

单选题 ---Could you direct me to my seat? ---Please show me your ____.

单选题 ---Why doesn't the plane take off? ---I am sorry to tell you that the flight has been ____ due to the bad weather.

单选题 ---How can I unfasten my ______? I want to pee. ---Draw the buckle and pull it out.

单选题 ---What can I do for you？ --- I want to go to the lavatory. --- Just at the end of the ____.

单选题 ---Please show me the seat 11 F. ---Ah, it's in the middle of the cabin, on your left side and next to the ____.

单选题 I am ______ that I spill the coffee on your coat.

单选题 ---Do you speak English? --- Sorry, my English is ___.