1. For one, it's not gramatically wrong, but as Khoff pointed it, "did" is a poor choice. When you "do" a test, you're usually performing tests on someone or something. It generally shows the direction of "giving" in general. When being on the

The past participle form (drunk, written, gone, sung, flown, sewn, etc) must be accompanied by a have. "Already", "Just now", etc are optional, the "have" is not. This is because a lot, a really lot of verbs have the same past tense and past

Yeah, just like CJ said, "It isn't quite sure..." is a poor sentence. When I hear something like that, I would think, who is this 'it'? For "It isn't quite certain...", I would understand the 'it' to mean the situation. It's like that because

(1) can be correct if you do it like this, "He's well...40." So perhaps you heard it that way. 'Well' can be used as an interjection; generally, meaningless words which you insert into a sentence while you're thinking.

A general rule when speaking in English is that you should contract all unimportant words so that it's easier to identify keywords in a sentence. Like "He's a boy." and "He IS a boy." has different meanings. So, there is some difference in "I

End up is the end result of an action: Beacause he didn't study, he ended up failing Finish up is placing the finishing touches on something: Please, finish up your homework before going to play.

Dumbed-down = lowered difficulty, watered-down, simpler with elements removed, etc. The sentence just basically means that the lowered difficulty university course plus the debts and time not spent earning is beginning to cause problems.

Coming to an end.

Haha, yeah, that's one of the dumbest multiple choice questions I've seen. D is a very stupid answer because it should be, "I've been waiting for you HERE for 20 minutes. What took you so long?". That would have been much clearer. However, A seems

extraordinary { and beauty}