See comments for answer keys**.

By the way, just want to reiterate (say it again) on what 'Zhuo'*** has mentioned in the Chatbox. Having education is a blessing and you must know it helps everyone (yes, including you) to be knowledgable, skilled and wise to do the right things. So, you must know: Education is necessary for everyone. Do not feel that you are doing it for your parents, siblings or teachers. You are doing it for yourself, too!

I MUST say I know that sometimes you feel tired/bored from learning, studying or revising. Take a BREAK... before going back to your revision. If you continue to study/revise when you feel bored or tired, you may start to dislike the work (learning). When you dislike doing something, you will not be happy when you are told to do it. So, take a break from work when you are tired and return when you have your rest. This will ensure that you will not 'dislike' learning (hopefully!).

Well, sound like the normal 'nagging' you get from me in class? Haha. I hope everyone can understand what I am trying to tell you. Alright, check out the comment section in the next few days.

** Just check your answers. I will go through thoroughly in class on Wednesday. I have also given some helping points to guide you to find the solutions.

***Zhuo, please DO NOT think I am reprimanding you. I am glad in fact that you have done your work. I must also say that whatever you said in the chatbox has given me the opportunity to advise you (and the class) on how one should look at his/her education.