—Bread ______ butter?
— Bread ______no butter. thank you.
| A．or, and | B．and, but | C．or, but | D．and. and |
Giving up my job to go back to full time education was a big ______, but now I know it was the best decision I ever made.
| A．project |
| B．commitment |
| C．competition |
| D．ambition |
When Peter speaks in public, he always has trouble ______ the right things to say.
| A．thinking of |
| B．to think of |
| C．thought of |
| D．think of |
The “Chinese Dream” is ______ dream to improve people’s well-being and ______ dream of harmony, peace and development
| A．the; a |
| B．a; a |
| C．a; the |
| D．the; the |
Carbon dioxide, which makes a _____ between us and the sun, prevents heat from getting out of the atmosphere easily, so the earth is becoming warmer.
| A．difference |
| B．comparison |
| C．connection |
| D．barrier |
______ your brother or you to blame for the broken TV set?
| A．Be |
| B．Are |
| C．Is |
| D．Were |