下列良性肿瘤的特点中，哪一项是错误的

A．多呈膨胀性生长，不发生转移

B．永不威胁生命

C．有包膜与周围组织明显界限

D．少数可以恶变

E．细胞分化程度高

用所给词的正确形式填空。

1. What ______ you ______ (bring) to the picnic?

2. Everything is beginning             (grow) now.

3. Jim wants to go home, so he needs             (find) the bus stop.

4.            you            (watch) the football game tomorrow?

5.            they            (have) dumplings for supper yesterday?

6. Look! The boys             (play) football on the playground.

7. He            (not know) much about China.

8. When            your brother            (buy) the computer?

9. The farmers are all busy            (get) the rice.

10. It's very hot today, but quite           . (cloud)