1. The microwave oven can help you h        the food very quickly.
2. Can I borrow your pocket c        ?  This mathematical calculation is too difficult.
3. My favorite shoes are those with a        heels, because I can move the heels up and down.
4. This kind of machine can be o____easily, so you needn't much skill to do the job.
5. I need a pair of s       to wear at home.

1. We should protect e _____ animals.
2. I want to eat something because I am k _____ of hungry.
3. How do you feel a _____ pollution?
4. The cake t _____ delicious. Would you pass me one more?
5. Many advertisements are aimed specifically a _____ teenagers, so you have to be careful.
6. I need a pair of warm trousers to keep o _____ cold.
7. Money is a _____ in some situations.
8. You can send flowers a _____ of time for Mother's birthday.
9. It's very important to choose a p _____ time to visit friends.
10. The map m _____ me, so I went the wrong way.

1. We should protect e_______ animals.
2. I want to eat something because I am k_______ of hungry.
3. How do you feel a________ pollution?
4. The cake t_________ delicious. Would you pass me one more?
5. Many advertisements are aimed specifically a________ teenagers, so you have to be careful.
6. I need a pair of warm trousers to keep o________ cold.
7. Money is a_______ in some situations.
8. You can send flowers a_______ of time for Mother's birthday.
9. It's very important to choose a p_______ time to visit friends.
10. The map m_______ me, so I went the wrong way.

A: 1_________________________.
B: I think I need a pair of sports shoes.
A: 2_________________________.
B: For my son. He wears size ten.
A: 3_________________________.
B: Do you have other colors? Black isn't his color.
A: 4_________________________.
B: OK. He likes the color brown. How much is it?
A: 5_________________________.
B: Forty dollars? That's a bit expensive. But I'll take it.