全文共有十个错处,先在错的下方划线，然后把答案写在右边的横线上

Thank you for invite me to the free

summer English course in you school. As for my

choice of the two courses, I like the five-weeks

course for 50 hours. This would allows me more

time to see your beautiful country while learned

language. I’d like to do some travel and make

a few new friends. In all the subjects I’m learning

at school, I like English best. I hope me to take this

chance to improve my speak English as much

as possible. I believe I will have wonderful time

in England this summer.

研究开发部门与市场营销部门的合作，可以采取哪些简便易行的发式？