[单选题] My secretary usually opens my post__________ it’s marked“private”.
A、unless
B、if
C、as
D、for
VI. Writing ( 25 points) Directions:For this part, you are supposed to write an essay in English in 100 ~ 120 wordsbased on the following information. Remember to write it clearly. Directions :For this part,you are supposed to write an essay in English in 100 -120words based on the following information. Remember to write it clearly. 你(Li Yuan)在英语学习中遇到了一些困难,希望得到帮助。请给你的英国笔友 (Jason)写封信,内容包括: ·介绍你学习英语的经历; ·描述你在英语学习中遇到的困难; ·希望笔友给你一些建议。