1．在聚会上，大家全都因为他的古怪(odd/ funny/ eccentric)口音(accent)而笑话他。
2．锻炼了一个冬天，他的溜冰水平变得很不错。
3．由于过度劳累(overstrain/ overwork)，她看上去比实际年龄要老得多。
4．结婚二十年来他对妻子一直很忠实。
5. 这种药物尚在试验阶段，至少要等两年后才能投放市场。
參考答案:1 on the party,people all laughed at his eccentric accent
2 having practised for a winter,he is quite good at skating
3 she seems much older than her actual age because of overstain
4 over the twenty years since he got married,he has been keeping honest to his wife
5 this drug is still under experiment,and it takes at least two years before it put into the market.