A bird in the hand is worth two in the bush.
"stay" переводится как "оставаться", значит антонимом будет слово "уходить" (leave, go или go away)
They were surfing the net
2)They were having a dinner
3)bob was working on his laptop
4)They were drinking coffee
5)Claire was talking on her mobile
6)They were playing football
Days :Tuesday, Friday, Sunday, Monday, Wednesday, Thursday, Saturday.
Subjects: History, Maths, English, Reading (предмет Чтение в младших классах), Geography, Russian.
Activities: Computing, chess playing, singing, tennis, reading, dancing, playing the piano, swimming.