Frankly speaking, ______of them knew what the other was doing that morning.
| A．none | B．neither | C．some | D．all |
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 |
It can be easy to _______ such bad habits as smoking and heavy drinking, but it is not so easy to quit.
| A．slide into | B．turn into | C．put into | D．draft into |
After class, Mr. Zhang’s extra instructions to the class helped _____ the assignment to his students.
| A．classify | B．clarify | C．cater | D．compensate |
She prefers the sofa made of real leather although it costs more than that made of ______ leather.
| A．fascinating | B．permanent | C．artificial | D．conventional |