—The light in his room is still on．Do you know________?
—In order to prepare for the coming exam．
| A．if he works hard | B．why he stays up so late |
| C．why is he so busy | D．when he will stop working |
The more you smile, the ___________ you will feel.
| A．happy | B．happier | C．happily | D．more happily |
We should study the new traffic rules and 1earn how___________ ourselves．
| A．protect | B．to protect | C．protecting | D．protected |
--- Does Ted tell you if he _______________ next Sunday?
--- No, he does’t. But if he ________________, I’ll give you a ring.
| A．will come, will come | B．comes, will come |
| C．will come,comes | D．comes, comes |
Tom ______________ sending e-mails _____________ letters．because it is faster.
| A．prefer to, writing | B．prefer, to write |
| C．prefers, to writing | D．prefers to , write |
I___________ some clothes to charity because they are too small for me.
| A．take after | B．hang out | C．give away | D．put off |