I am busy ________ for the lesson.

Every magnet has (4) _______ poles, called north and south, at opposite ends of it: at the two ends of a horseshoes magnet, for example, or on the two sides of a disc.

Mr. Albert is intelligent but he_______ common sense.

This is a picture of a _______ bus.

The larger the area of forest is destroyed, _________

We _____ on the beach now if we hadn’t missed the plane

_______ your effort and talent, we wonder if you can work full time for us.

I see John’s boasting again. I’ve heard him telling everyone he’s the best tennis player in the County. He is _______

We are _____ no obligation to change goods which were not purchased here.

I know we had an argument, but now I’d quite like to _______.

You work very hard. I’m sure you’ll have no _______ the exam

Out ___ for a walk after she finished doing her homework

You ______ so politely at the party. Everyone was casually dressed

The number of people traveling by air has been growing _______.

As soon as you buy a car, it starts falling in ______.