hello, following sentence which one is correct? 1)an analysis model is needed to know how many extra-collisions actually brings up by the power control protocol. or 2)an analysis model needed to know how many extra-collisions actually

The time is the best medicine. How about have a long holiday? Not take the phone.

Mister Micawber , Thanks very much. You are a very good teacher. Best wishes. word

I am confused.The friend's reply is improper? Who tell me how to answer the sentence "what do you have planned for today?" Maybe nextday, someone would ask me like that. thank you for the attention. I am eagle for your informative reply.

x and y are the estimating parameters of the power control protocols' performance . x and y are the estimatingparemeters of the performance of the power control protocols. x and y are the estimating parameters of the power control protocols

parameters of the power control protocols' performance paremeters of the performance of the power control protocols parameters of the power control protocols performance

Is the follow sentences right? For the devices are often powered by batteries with limited weight and lifetime, power control become a main concerned issue for reserving the energy. Because the devices are often powered by batteries with

Thanks a lot. I wondered if sentence 2 can not use "it is ",my teacher said it sounded like a child word. Thanks in advance. I think I found a good place to improve my English.

Thank you for your so quickly answer. 1) The new technique have attracted more people's interesting. Is it better? 2) It refers to the new technique. It is widely used in civilian disaster recovery and monitoring of herds of animals. How to

The question are more concerned recently. It is widely used in civilian disaster recovery, herds of animials. my teacher say it is not formal.