Present Perfect или Past Indefinite! (раскрыть скобки) 1.we (already / to pack) our things when you (to come) 
2. The rain ( not to stop) when we ( to come out) 
3. The meeting ( not to begin) when we ( to arrive) 
4. Mary (not to finish / yet) her homework when her father ( to come) home 
5.He ( put away 0 the magazine after he ( just / to read) it.

we`ve already packed our things when you camethe rain hasn`t stopped when we came outthe meeting hasn`t begun when we arrivedmary hasn`t yet finished her homework when her father came home he put away the magazine after he has just read it