Whom VS Them "There are over 6,000 students at this university, many of WHOM come from overseas. Why whom can't be replaced by "THEM" in this sentence?

In order that VS so that I had to complete the missing part: The father tiptoed out of the room ______________ wake the babe up. a) so that he didn't b) in order that he wouldn't My teacher said a) is the correct one, but I still don't know why b isn't ALSO correct. By the way, if in b we use "in order to", would it be correct "in order not to wake the baby up?" To express consequences, when we use "so" and when "in order to"??

FCE Writing practise, can you help? Hi, I hope you can correct this informal email to a friend about teaching her grandparents how to use a computer because she is going to work overseas. Dear Sarah, I was greatly surprised when I heard that you are going to work overseas for such a long time. I think it is a great idea to teach your grandparents to use the computer to keep in touch with them. They will miss you for sure and there are a lot of advantages of electronic communication. Firstly, you will be able to write to them no matter the distance or hour difference, and the message arrives instantly. Secondly, if they learn to use Skype you will be able to see each other: you know how important the non-verbal language is! However there are also disadvantages: you will need a high-speed connection to videocall them and a new computer could be a bit expensive, although they can buy a second-hand one. Finally, the worst thing that can happen is that they could get a virus if they don’t know how to use the internet safely. Nowadays there are a lot of schools for elderly people with professional teachers, where they can learn the basics, and there are also volunteers who can teach them in their own home. Volunteers are usually young people. In my opinion I think that it is because they use computers a lot to study or at work. On the other hand, I believe old people don’t use electronic devices very often because they did not existed when they were young and now it is more difficult for them to learn. There are a few disadvantages of not using electronic devices (you can not meet people of other countries, you are not in touch with relatives whom live far away…) but it all depends on your needs. I wish you a lot of luck in your new project and I hope you can write me soon! Take care, Mireia