预防猪流感

Dar tachr, I rally want to say thanks to you bcaus you not only tach u a lot of knowldg, but also ar concrnd about us. I still rmmbr that you worrid about our halth last spring, whn influnza A spradd rapidly around th city. You, my dar tachr, askd us to wash hand and tak a bath frquntly. You also suggstd us to opn th windows and not go to th plac having many popl. You rcommndd us to drink mor watr and form a good habit. You cam arly and back lat to spray drug. It was vry painstaking.My dar tachr, thanks again. Bst wishs!

　　Yours sincrly

　　Mik

　　2009-10-1