求解几道简单的英语题改错.1.How happy I is! ------ ------ -- A B C ( )___

求解几道简单的英语题
改错.
1.How happy I is!
------ ------ --
A B C ( )______
2.You doesn't know how to eat the meat.
--------- ------ -----
A B C ( )______
3.The man is knocking to the door.
--- ---------- ---
A B C ( )_______
我们正在总复习,这道题是重点,麻烦大家帮帮忙