diary

Today is a sunny day. And it is very hot.
In our company, we have a team which have ten menbers.
All the members are come from different department.
Usually, at the weekend we go to the BaiMaJian Garden for barbecue.
And we requied everyone must take family members.
Childs can meet new friend.
Colleagues or family members can increase fellings.

It was sunny and hot today. In our company we have a team of 10 from different departments. On weekends we have barbecue at the baimajian garden and we are supposed to bring our families with us. Company believes that bringing families of employees together helps to make employees more dedicated to company and eachother.

Diary

Today is a sunny day. And it is very hot. In our company, we have a team which have of ten menmbers.  All the members are come from different departments. Usually, at the on weekends we go to the BaiMaJian Garden for barbecue. And We required that everyone must takes at least a family members.  Childrens can meet new friends.
Colleagues or family members can increase fellings. This is to foster ties and bonds among us.

You do not put a blank line after each sentence.  This is prose not poetry.  Unless you begin a new paragrah, (which you must use a blank line to separate), you need two spaces to separate sentences within the same paragraph.

Read http://www.italki.com/knowledge/page/Mechanics%20Of%20The%20English%20Language.htm for punctuation spacing.