Good friends are like stars.You don’t always see them, you know they are there.

Mr Smith’s watch doesn’t work, so he’s going to asksomeone _______it．

The number of people in the world ________ about 6 billion and large quantities of waste ________ each year.[ ]

Many people who live along the coast make a living _______ fishing industry.

that you didn’t care about this matter at all, I should not have wasted my time explaining it to you.[ ]