Jumping out of _______ train running at a speed of 200 kilometers per hour is quite _____ dangerous practice.
| A．/; the | B．/; a | C．a; a | D．the; the |
According to the air traffic rules, you ___ switch off your mobile phone before boarding.
| A．may | B．can | C．would | D．shall |
— Do you think another Korean War will break out?
—Only through peaceful dialogues can a war be avoided.
| A．No way. | B．That’s for sure | C．Why not? | D．It depends. |
While studying， fix your mind on what is really important， or you will
remembering nothing.
| A．take up | B．lead to | C．stick to | D．end up |
Advertising is different from other forms of communication in that the advertiser pays for the message.
| A．to deliver | B．having delivered | C．to be delivered | D．delivering |
— Hi，Michelle， I can’t find my e-dictionary.
— Sorry，I it. I guess I put it on the top shelf with my things.
| A．had used | B．used | C．was using | D．am using |