根据中文提示或者单词首字母，写出单词的正确形式。每空限填一词。
I like __________(秋天).
Beijing is the __________ (首都)of China.
Doing exercise is a good way to __________ （保持）healthy.
Our school is__________ (真正地；很，非常) big and beautiful.
How many __________ (土豆)have you got?
My grandfather is e________    years old.
—What day is it today? —It’s W__________.
Betty sits n ________ to Tony.
There are many teachers in the o__________.
It is i__________to eat the right food.