I tripped ......................... the bags and fell on the platform. A.on B.over C.at Answer and Feedback Answer:B do you want? view more test Xem thêm Share this post Some other questions you may be interested in. "I have known him ________ nine years." "Many vegetables ____________ carrot contain vitamin A." "I will arrive ______ eight o'clock." " He has been gone __________ Monday." "The store is located ______ Bungalow Road." "She will be leaving ______ five minutes or so." "John, Jacky and Juli will discuss the issue _________ themselves." "I have known her __________ last year." "I have been ________ German for the last ten years." "You always take things for ________."