Grammar exercise 7 - Grammar Vocabulary Mix

Today I decided to do a grammar mix exercise to see how much I already improved my English. There are four different levels and I did level 4. I had 80% and did a similar test when I came to Australia and just had half of the answers right. I think I improved my English in the first two and a half month here in Australia so far, and I try to do a another similar test at the end.

http://www.ego4u.com/en/cram-up/tests/mix-4