-Can you tell me why you learn English so well?
-It’s very simple._____ you work,______ grades you will get.
| A．The harder;the best | B．The bard;the better |
| C．Harder;better | D．The harder;the better |
Students in their school ___________ trees on Tree Planting Day every year.
| A．require to plant | B．require planting |
| C．are required to plant | D．are required planting |
_______ it’s very foggy, the highway is closed for the time being.
| A．Where | B．As |
| C．Because of | D．So |
— I wonder if your father _______ you to go swimming.
— I’m not sure. But I will tell you if he _______ to let me join you.
| A．will allow; will agree | B．allows; agrees |
| C．allows; will agree | D．will allow; agrees |
The boy felt very _______ and fell _______ as soon as he lay on the bed.
| A．sleepy; sleepy | B．asleep; asleep |
| C．sleepy; asleep | D．asleep; sleepy |
— With the red skirt _______ her, Jane looks prettier.
— Yes. I’m a little green _______ envy. I wish I were as pretty as her.
| A．on; with | B．in; on |
| C．on; in | D．in; with |