The feedback I received from the Net Tutor has further helped me to develop and shape the contextual errors in my writings. The comma placement is my major weakness and as I have the tendency to do the mistake where to place the comma and when it is necessary. Through the feedback, I have got the idea of comma placement in an appropriate manner such as while there are two or more dependent clauses in the sentence, comma needs to be used and to put a pause in between the sentence; it is indeed necessary.