We should produce less things from raw materials, _____ is growing smaller and smaller.
| A．whose supplies | B．the supply of which |
| C．which supply | D．the supply of whom |
I’ve always been very ___ about giving my address and telephone number to strangers.
| A．worried |
| B．anxious |
| C．careful |
| D．cautious |
I waved to Nancy, but she was ___ in her thoughts, and made no response.
| A．involved |
| B．stuck |
| C．absorbed |
| D．interested |
I have tried to solve the problem, but it is so difficult that it ___ not only me but also my friend.
| A．attracts |
| B．handles |
| C．defeats |
| D．injures |
John Snow became inspired when he thought about helping ordinary people ___ Cholera.
| A．led to |
| B．contribute to |
| C．exposed to |
| D．absorbed into |
Her ___ character didn’t help her become an actress.
| A．positive |
| B．negative |
| C．enthusiastic |
| D．immediate |