Yes, you are correct! A hand is just the part at the end of your arm! If you describe something that is done with arms and hands, however, since you can't separate them of course, use the word "arm." For example, if you give somebody a hug, you say that you put your arms around them. I hope this was helpful!

I don't think "I have almost forgotten" is grammatically incorrect, but it is not a natural way to speak. Everyone who speaks English would say "I almost forgot!" I hope this is a more helpful answer. ;-)

The first one, both are incorrect. You can say: Software engineers are well-paid. Being a software engineer pays well. Second: my university doesn't have vacations. (Only people take vacations!) :) Third: it's easy to find a job after graduating. Or, it's easy to find a job after graduation. ( no "my")

Many of these weather conditions only have nouns to describe them, such as blizzard, tornado, hurricane. So if it is happening now, you can only say, "There is a blizzard" or you can use "we are having," as in, "we are having a snowstorm." Words like rain and snow can also be verbs, so "it is raining/snowing" is correct. Some weather words can be used in adjective form, as in "it is windy" "it is sunny" "it is rainy today." Hope this helped!

None of them, actually, sorry! :) It sounds as though you are trying to express that, in the three years leading up to your senior year, you had not done much studying of English. If that is what you meant, you could say it this way: By my senior year in high school, I still hadn't studied much English during the past three years. I hope this helped!

The second sentence is correct.

Yes, as the previous answer said, there are not many differences in standard speech and grammar; in other words the way and American speaks English would not be considered incorrect in England and vice versa. The differences do you tend to be mostly with the spelling and with the usage of some words. In other words the way an American speaks English would not be considered incorrect in England and vice versa. The differences tend to be mostly with the spelling and with the usage of some words. So while Americans wear a "sweater" the British wear a "jumper." Americans eat "potato chips" and the British eat "crisps." On a crowded train an American would "step on" your foot, but an English person would "stand on" your foot. These differences may cause some misunderstandings but otherwise it is the same language, other than the accent of course.