—This physics problem is too difficult. Can you show me _____, Wang Li?
—Sure.
A. what to work it out B. what to work out it C. how to work it out
He looks tired. We’d better make him _______a rest in the room.
| A．stop to have | B．to stop to have |
| C．stop having | D．to stop having |
— do you walk your dog?
—Less than three times a week.
| A．How many times | B．How often |
| C．How long | D．How soon |
None of them have pity on the poor. What shame it is!
| A．/, a | B．a, a | C．a, / | D．a, / |
Linda's father hates waiting in long lines. I think he's not very _____.
| A．patient | B．talented | C．popular | D．powerful |
The teacher tells us that __ careful we are, __mistakes we will make.
| A．the more; the fewer | B．the fewer; the more |
| C．the more; the more | D．the less; the fewer |