________ energy is generated from natural resources—such as sunlight, wind, rain, tides and so on.
| A．Recyclable | B．Non-renewable |
| C．Rechargeable | D．Renewable |
____ the workers’ working conditions, the boss will allow them to have a coffee break.
| A．Improving | B．To improve | C．Having improved | D．Improved |
—I'm going on a holiday tomorrow.
—______.
| A．All the best | B．Never mind | C．That's all right | D．The same to you |
— I'm going to Hongkong University for further study.
— __________ You've been dreaming to study in Beijing.
| A．Why not Tsinghua? | B．Good luck! | C．Congratulations! | D．Good idea! |
---So why didn’t you meet us on Saturday then?
---I’m sorry about that--- I _________ --- I thought you were meeting next Saturday.
| A．get the fact straight | B．have a good nose for it |
| C．play a trick of the trade | D．get the wrong end of the stick |
Next door to ours _________, who has just return from abroad.
| A．where lives an old man | B．lives an old man |
| C．where does the old man live | D．does an old man live |