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Many, costumes, children, and creepy masks, Halloween parties, wearing, and adults, spooky, go to

.1.-open the window.

-but i have opened the window.

2.i have seen the film.

3.he has opened the door.

4.they have cleaned the room.

listen, ivan sings in the next room.it doesn't see that i look at it, as he reads something with a great interest.call him now. i think that he doesn't sleep yet.look at the person who sits at a window. he/she is our lawyer.

what are the importantnews! ,whatbitter orange! ,whatan excitingthought! ,what beautifullong hair! ,what a fresh hair! ,anylargepotatoes,what a sweet carrot,anyunusual landscapes, any humid climate.

. scientists -б results-б helps-а officials-б applicant's-в watches (tv programme)-а watches-б

2.

он сдал выпускные экзамены на отлично. заводы санкт-петербурга производят автоматические механизмы подземным транспортом. наша промышленность быстро развивается.