用worthwhile/worth/worthy 完成句子。

1. You'd better spend your time on some ____.

    你最好把时间花在读一些有价值的书上.

2. In my opinion, selling the car at this price is____.

    在我看来,这辆车卖这个价钱不合算.

3. It proved ____ make the trip to the capital city .

    去首都的旅行证明是值得的.

4. The Christmas present I gave her the other day is _____ 20 dollars.

    前天我给她的圣诞节礼物值20 美元.

5. The____ gentleman couldn't even tell wheat from barley.

    这位可敬的绅士不能辨别小麦与大麦.