用括号内所给词的适当形式填空。

1. John _____ (not stay) at home yesterday.

2. We _____ (clean) our classroom a moment ago.

3. Why _____ you _____ (come)so early this morning?

4. My little brother enjoys _____ (swim) very much.

5. Kate finished _____ ( do) her homework at 10 o'clock last night.

6. When did Shakespeare start _____ (write) plays?

7. She _____ (not visit) her uncle last weekend. She _____ (stay) at home and

    _____ (do) some cleaning.

8. He _____ (look) after her mum yesterday morning.

谈谈秦观词雅的特点。