It’s ____ to teach a man fishing than to give him fish.

How did they come to school today?—Because of the rain they came to school onfoot _____ a bus.[ ]

By the time my mom _____ to our school, all others of my class ______ for home.

_______city is the capital of China?—Beijing is .

比较划线部分的读音，选出一个与其他三个发音不同的单词.