I’m not feeling well. I may have ____ bad cold.

In China, people walk _________ of the street.(街道) [ ]

Be careful. Is it low enough ______ you to be able to step over it? — Sure. Thank you. [ ]

What do you think of Mike?-A nice boy! __________ a monitor, he not only studies hard but also likes helping his classmates.[ ]

Happy birthday _____ you.[ ]