150 word articles for BMR

I need someone to write small mini articles / blurbs about various topics for a service that I use called build my rank. I will give you a keyword and all you have to do is make that keyword appear once in a new unique article (yes I check) and make it appear natural. The articles will need to be accepted by a human reviewer (I have 100% acceptance rate so it shouldnt be to hard) so your english will need to be up to standard. This is a test project and if you win it and do well chances are you get more work. bids should be within the 30 to 50 pricerange. and lower bids will be given higher considerations.