Question

20 БАЛЛОВ!!!ПОМОГИТЕ ПОЖАЛУЙСТА!!!Поставьте в нужную форму:
be, give, be designed, show, use, have - present simple;
develop - present perfect;
be replaced, be, serve, become - past simple
я знаю я тупая

Answer 1

be - am/is/are, give - give/gives, be designed - am/is/are designed, show - show/shows, use - use/uses, have - have/has -- present simple;
develop - have/has developed -- present perfect;
be replaced - was/were replaced, be - was/were, serve - served, become - became -- past simple

Answer 2

1) у всех окончания s  кроме be 
2)  develops 
3) was/were replaced , was/were   , served, becAm ,