Look! The tree is growing well. When______

He always did well at school_________having to do part-time jobs every now and then.[ ]

The farmer ________ a lot of experience by observing the growth of his vegetables.[ ]

I ____ to your birthday party last Sunday.— Unfortunately, you were out on business.

Where there is a will, there is a way. Professor Zhong Daolong who began to learn English in his _______ is a good English teacher now.