(      )9． Scientists _________know a lot．

约上几个好朋友一起去旅行吧，假设你是马琳，请你通过e-mail的方式对你的朋友张鹏发出邀请，组织好这次旅行。

提示：1．对朋友发出邀请。

2．你的计划简介要包括活动的内容、目的、时间、地点等等。

3．提醒他需要准备的东西。

4．约定出发时间和见面的地点。

要求：1． 80 ~100词。2．开头和结尾已给出，不计入总词数。

Hi，Zhang Peng!

l hope everything is going well______________________________________________________________

Hope to see you soon!

                                                                         Yours,

50． What did the famous scholar say is very________ (education) to the youth．

49． Maybe we can visit another place． This one is too ________ (tourist)．

48． The MP4 costs only 200 yuan．I think it，s_________(expensive)．

46． My mother would like me________ (do) some shopping with her．

47． She hopes________ (be)a doctor when she grows up．

44． The students_________(not allow) to smoke．

45． What do you plan_________(be) in the future?

42． If you decide________ (visit) the Great Wall，l will go with you．

43． Wu Bin considered________ (take) part in the long jump．