Our planet is about years old.
| A．35,000 | B．4600 | C．4600 million | D．500 million |
—Have you decided where to spend your summer holiday?
—Not yet. We ___ go to Hong Kong.
| A．may | B．must | C．should | D．need |
—What should I do ,doctor?
— ___healthy, you should take more exercise.
| A．To keep | B．Keep | C．Keeping | D．Kept |
—How’s it going, Bob? I haven’t seen you for ages.
—______.
| A．That’s all right | B．Forget it |
| C．That’s right | D．Fine, thanks |
—Clean-Up Day is coming. How do we let more people know it?
—We could ____ advertisements after school.
| A．call up | B．hand out | C．put off | D．think up |
—Do you have any problems if you ____this job?
—Well, I’m thinking about the working day.
| A．offer | B．will offer | C．are offered | D．have offered |