1．猜测：
1）guess（that）．．．
I guess she's gone to visit some friends in another town．我猜她可能到另一个城镇去看朋友了。
2）It seems（that）．．．
It seems she was in class on Friday afternoon，but no one has seen her since then．星期五下午她好像还去上课，但从那以后就没有人见到她了。
3）It looks as if．．．
So it looks as if she meant to return．所以，看起来她是打算回来的。
2．可能和不可能，以及肯定和不肯定：
That's possible，but I can't be sure．有可能，但我不能肯定。
表示这三个话题的常用句型还有：
Hecan／may．．．
He is not likely to．．．／It is likely that．．．／Idoubtif．．．／Per- haps ／Maybe．。例如：
It is likely that he will arrive on New Year's Eve．他很有可能在除夕到达。
Maybe you're right．或许你是对的。
The old woman may be a bit deaf．那位老太太可能有些聋。
Scotland can be very warm in September．苏格兰的九月可能还很热。
He is likely to be chosen．他很可能被选中。
I doubt if ／whether he will keep his word．我怀疑他是否会遵守诺言。
