The two answers are "A" and "D". hope this helps
I don't understand this question at all can you make it clear?
6) is A,
7) is B
8) is B
9) is D
10) is C
The use of the comma here is incorrect because t<span>hese are two independent clauses and should be separated by a semi-colon or a period not a comma. Hope this is what you are looking for. </span>
Invade: Enter a place, situation, or sphere of activity) in large numbers, especially with intrusive effects... Synonyms for invade: occupy & takeover
Explore: travel through and unfamiliar area in order to learn about it.... Synonyms for explore: Tour & search