— It’s dangerous to walk across the street carelessly.
— You’re right. We can’t be careful while crossing the street.
| A．so | B．very | C．too | D．more |
— How clever you are! How can I know as much as you?
— ______ you read, _______ you can learn.
| A．More; more | B．The more; more and more |
| C．The more; the more | D．More and more; more and more |
Young people think it _____ great fun to surf_____ Internet.
| A．a; the | B．/; / | C．/; the | D．the; the |
The teacher asked the students.
| A．if they are interested in dinosaurs |
| B．when was Audery Heben born |
| C．What they will do with the computers |
| D．how many trees they had planted |
Alow-carbon(低碳)lifestyle has an effectour daily life.More and more attention has been paid toEnergies these days.
| A．in;save | B．in;saving | C．on;save | D．on;saving |
The teachers _________ the office for a few minutes when we arrived.
| A．had been away from | B．had left |
| C．have been away from | D．have left |