单句改错。

1.  You should make yourself understand in English.____

2. The person was sent for would come here soon.____

3.  Not known what to do,he asked me for help.____

4.I am very glad to hear the news announcmg.____

5. Losing in thought,the old man was hit by a car.____

股份公司上市后增资的方式有（）。

A.向不特定对象公开募集股份

B.非公开发行股票

C.向原股东配售股份

D.发行可转换公司债券