_____clearly so that your teacher_____you correctly.
| A．Write, can understand | B．Having written, can understand |
| C．To write, could understand | D．Writing, will understand |
_____ of danger in the street at night, she had to go home, with a friend ____ her.
| A．Warning, following | B．Having warned, following |
| C．Having been warned, following | D．Warned, followed |
The inner connection for the entire area _____when there was a sudden power cut yesterday.
| A．lost | B．was lost | C．had lost | D．had been lost |
____along the quiet road at forty miles an hour, and then an old man suddenly started to cross the road in front of me.
| A．Driving | B．When I was driving | C．I was driving | D．Having driven |
To order tickets for the 2016 Riode Janeiro Olympic Games, just call 00982012. It _______ be simpler.
| A．must | B．could | C．mustn’t | D．couldn’t |
My demand is that the information_______ in my report _____ to Mr. Brown without delay.
| A．referred to, to be e-mailed | B．referring to ,e-mailed |
| C．referred to, be e-mailed | D．referring to, being e-mailed |