Let me just edit these for you.
1.) (incidentally), i got my license before i bought my own car
2.) When I share something, I always make sure I research about it and make sure that I have assimilated all details.
3.) For one to dissolve materials, he must have his own (crucible).
4.) i spent a lot of time reading about the german (reunification). It's more interesting than I thought it was
5.) i have a friend who is of american (descent) but can speak more than four languages.
6.) Because of globalism, bilingualism is encouraged in most schools.
7.) (cultural pluralism) helps to form an excellent environment in order to make new friends
8.) Stone-built houses are some of the most important (heritage) symbols in my country
9.) i have been a student at many different (institutions) already.
10.) There are many (hypotheses) that precede the inventions that we know