--I failed the exam this time, I was quite worried.
-- you fall, pick something up. Learn from your mistakes so you don't repeat them.
A. No matter
B. As
C. Whenever
---- How does your father usually go to work?
---- He _____drive a car, but now he _____ there to lose weight.
| A．used to; is used to walk | B．was used to; is used to walking |
| C．was used to; is used to walk | D．used to; is used to walking |
The math problem is _____ difficult that only _____ students can work it out.
| A．too; a few | B．so; a few | C．so; a little | D．enough; little |
________ fathers are both doctors.
| A．Jim's and Bob's | B．Jim's and Bob |
| C．Jim and Bob's | D．Jim and Bob |
Please __________ the light when you leave the classroom.
| A．turn on | B．turn up | C．turn off | D．turn down |
When you go _________ the street, you must be careful.
| A．crossing | B．cross | C．across | D．pass |