Choose the correct form:
1) He (like, likes) English.
2) They all (like, likes) English.
3) She (do not, does not) speak English.
4) Did you (study, studied) German at school?
5) She did not (study, studied) French at the university.
6) I did not (like, liked) mathematics. 7) At school I did not (study, studied) the economy of Great Britain.