【单选题】As soon as _____ concert film 'This Is It' was released on October 28th, it became _____ great success in all big cinemas across the planet. [ ]
【单选题】19阀控式液压舵机中,一般不使用______。
【单选题】Which sentence sounds more polite?
A.
“The rate was agreed to when the room was reserveD.”
B.
“This is the agreed rate – pay now.”
C.
“You agreed to this rate when you reserved the room.”
D.
“You signed for this rate so that is final.”
【单选题】Which of the following sounds more informal and more natural?
【单选题】Which sentence sounds more professional?
A.
“How may I assist you today?”
C.
“What do you need, sir?”
【单选题】Which sentence sounds more professional?
A.
“Are you checking in?”