根据句意或句子的语法要求，用括号中所给单词的适当形式填空。
In spring, we can see green            (leaf) and grass everywhere.
Mother Teresa was born in Macedonia, Europe. She was the          (young) of three children of the family.
You’d better go home to see your parents        (two) a week. They need more care.
The doctor advised me to eat          (healthy) and exercise a lot.
CCTV is starting a project            (call) “Looking for the most beautiful country teachers”.
—Mr Zhang, could I         (borrow) your dictionary?
— Yes, you can.
Many trees         (plant) in my hometown every year.
Miss Lee         (teach) us English since she came here three years ago.