Brainstorming helps you figure out the things you want to write. It also helps you figure out what order you want to put it in
Prefixes: Ex, Im, Tele, or Trans.
1d) was designed (long time ago so past tense)
2d) Has been repaired (It is still going on the present, this year)
3c) Had discovered (He discovered America long time ago)
4a) To have worked (worked long ago when he was young)
Hope it helps!
Sure thing. Post your questions.
