—Do you know Tina well?          
—Yes. She and I _____ friends since we met last summer.

—How long has Sam  been skating?
—He _____ for five hours.

句型轉(zhuǎn)換。
1. Tom ran for an hour. (用現(xiàn)在完成進行時改寫句子)
    Tom _____ for an hour.
2. I've been dancing since I was five years old. (對劃線部分提問)
    _____ _____ _____ you _____ _____ ?
3. China is an old country. It has a long history. (合并為一句)
    China is an old country _____ _____ _____ _____ .
4. They have used up all the money. (改為同義句)
    They have_____ _____ _____ all the money.
5. Lucy has been skating for a long time. (改為一般疑問句并作否定回答)
    _____ Lucy _____ _____  for a long time?
    _____, she _____.

用所給詞的適當形式填空

—Hey, it's raining !    
—Yes, it _____ for about 3 days.    

— How long has the man been waiting?
— He _____ for 20 minutes. 

The rain started an hour ago. It's still raining now. It             for one hour.  

Shenzhou VI ________ around the earth for 115 hours.

-When_____ you_____teaching in our school,Mr. Smith?
-I_____here since 1998.

I              the living room all day,  and I’ll finish it this evening.