It's too early. I don't think the ticket office is open ________ nine.
A.before B.at C.until D.since
________ he had a good start, I made my effort to run after him at last.
A.When B.Because C.If D.Though
One of the multi-function (多功能) gloves was invented by a junior 3 student in Suzhou. _________ amazing creation it is!
A.What B.What a C.What an D.How
Remember how you allowed me ________for dance and music lesson.
A.enter B.entering C.to entering D.to enter
It's a pity that some students waste energy _________ on line.
A.to chat B.chatting C.chat D.to chatting
During this special time, the way people ________each other has changed, we don't shake hands or hug any longer.
A.greet B.accept C.recognize D.help
