P21-22

I. 1-5 ehabc 6-10 gifjd

II. 1. He is playing tennis. Yes, I do. 2. They are playing hockey. No, I don’t.

III. 略

IV. twelve, January, second, of, Spring Festival, third, on, fourth, on, May, it, it, June, June, sixth, seventh, September 10th, on, October, eleventh, December, twelfth, Christmas

P23-24

I. 1. to go 2. are making 3. the second 4. skating 5. harvesting

6. warmer and warmer 7. are singing 8. is

II. 1. is, He, He’s fishing 2. they aren’t, playing volleyball

3. They are performing. celebrating 4. he isn’t, He is swimming.

III. 1. It’s Saturday. 2. My father is. 3. He is drawing. 4. She is reading a storybook.

5. You’re playing computer games.

P25-26

I. 1-7ABBBCAB

II. 1. They are having a good time.

2. Do the animals come out from their long sleep?

3. What are the girls looking at?

4. Lisa doesn’t blow out the candles.

5. Does he get home at six?

6. Which season is the third season of the year?

7. Please don’t cut the cake.

8. We give Jane our presents.

III. 1. It is summertime.

2. Yes, he does.