John was walking on air when he knew his father bought him a computer.
| A．too bad | B．quite worried | C．very excited | D．a little angry |
Look! The workers ________ some subways now. the traffic in Nanning will be better soon.
| A．build | B．built | C．are building | D．were building |
You will be late for school ________ you don’t get up early.
| A．but | B．and | C．if | D．or |
Animals are our good friends. We are supposed ________ them.
| A．to protect | B．protect |
| C．protecting | D．protected |
–Have you ever been to Guilin?
--No, ________. I hope I can go there next year.
| A．always | B．sometimes | C．never | D．often |
During summer, lots of people swim in the pool, so it is very ________.
| A．clean | B．similar | C．beautiful | D．crowded |