1·It is a truly delightful place, which looks the same as it must have done 100 years ago with its winding streets and pretty cottages.
这真是一个令人愉快的地方，它一百年前一定和现在看起来一样，有蜿蜒的街道和漂亮的小屋。
2·He said I must have done something bad to deserve it.
他说我肯定是罪有应得。
—— 《牛津词典》
3·He must have done a good job.
他一定做得很好。
4·Wendy had danced with joy, just as the real Mrs. Darling must have done.
温迪高兴得手舞足蹈，就像达琳太太本人当时那样。
5·They argue that the first hunter-gatherers to develop rice agriculture must have done so in this southern zone, within the apparent present-day geographic range of wild rice.
他们认为，最早发展水稻农业的狩猎采集者一定是在这个南部地区，在现在野生水稻明显的地理范围内。
6·I must have done something right.
但我肯定也做对了一些。
7·You must have done something to her.
你一定有跟她做什么事。
8·So I must have done something right.
所以我应该没做错什么！
9·She must have done a lot of work on it.
她一定在这上面花了不少功夫。
10·God must have done this, made you for me.
肯定是上帝的恩赐，把你给了我。