Where did you find Miss Gao just now？
In the office，she （talk） with other teachers at that time．
Teenagers should （encourage） to solve their problems by themselves．
Tom has invented a tree﹣planting machine．
I think no one is （create） than him．He's a boy full of strange ideas．
根据句意，用所给单词的适当形式填空．
If you want to make yourself （understand），you'd better speak clearly and slowly．
Sandy's grandparents （marry） for 50 years．