20 ! ! 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

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

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