单项选择题
（）I tell you yesterday not to touch that dog!
A.Haven’t B.Hasn’t C.Didn’t D.Aren’t
单项选择题 May I have two（）instead of beans, please
单项选择题 Paul: Can I help with your luggage? Lisa:（）
单项选择题 The convenience of modern freeways, railways and airplanes makes travel in America as easy as （）
