What we want is an environmentally friendly car, especially ____ is good on gas.
| A．one | B．one which | C．which | D．one that |
John plays basketball well，________ his favorite is badminton.
| A．so | B．or | C．yet | D．for |
In some places women are expected to earn money ________ men work at home and raise their children.
| A．but | B．while | C．because | D．though |
They wanted to charge $5,000 for the car, ________we managed to bring the price down.
| A．but | B．so | C．when | D．since |
Find ways to praise your children often，________ you'll find they will open their hearts to you.(2011·山东)
| A．till | B．or | C．and | D．but |
Sometimes proper answers are not far to seek ________ food safety problems.
| A．in | B．to | C．on | D．after |