Because of the financial crisis, days are gone _ _ local 5-star hotels charged 6,000 yuan for one night.
| A．if | B．when | C．which | D．since |
Not only ______ a school in his hometown, but also he built a new hospital there.
| A．he has set up | B．he did set up | C．has he set up | D．did he set up |
More and more people would like to live in the countryside ______ the air is fresher and the price of housing is lower.
| A．that | B．where | C．which | D．for which |
There are many mistakes in your homework. You should ______ special attention to the correct use of tenses.
| A．focus | B．pay | C．require | D．get |
Her gentle smile at the meeting put everyone ______.
| A．at peace | B．at present | C．at best | D．at ease |
The company offers many opportunities for professional（职业的） ______.
| A．achievement | B．approach | C．development | D．purpose |