Frankly speaking, I’d rather you ________ anything about it for the time being.
| A．didn’t do | B．haven’t done | C．don’t do | D．shouldn’t do |
________ the reason, it is for sure that yawning can be passed from person to person.
| A．Whatever | B．Wherever | C．Whichever | D．However |
It's important to learn how the whole system works. Sometimes, ________， it's the details that interest us the most.
| A．therefore | B．meanwhile | C．furthermore | D．though |
For many people, paper is ________ better material, because ________ process for recycling paper seems much easier.
| A．the; a | B．a; the | C．/; a | D．the; / |
--- You won’t believe it. Sam. I have been chosen as an exchange student to China .
--- Congratulations ! ___
| A．That’s something. | B．You did a good job . |
| C．That’s all right. | D．You got it . |
We have a high regard for Mr. Black because he always tries to ________ his principles.
| A．live up to | B．look forward to | C．catch up with | D．put up with |