Please stop to have a rest. I think, to teenagers, health is as __________ as their study.
| A．more important | B．less important |
| C．the most important | D．important |
Talk to your teacher and you will get help ________ you have a problem.
| A．if | B．so | C．until | D．unless |
Mr. Black used to be busy. But now he’s retired and , so he has plenty of time to exer cise.
| A．hard | B．calm | C．free | D．nervous |
My grandpa is going to be years old this year. He will have his birthday party this Saturday evening.
| A．sixty, sixty | B．sixty, sixtieth |
| C．sixtieth, sixty | D．sixtieth, sixtieth |
—Will you get there by ________bike?—No, I will take ________bus.
| A．the, a | B．a, the | C．the, / | D．/, a |
The young has over twenty .
| A．inventor, inventors | B．invention, inventions |
| C．inventor, inventions | D．invention, inventors |