Воткните глагол to be в нужной форме 4.they___swimming in the river

Воткните глагол to be в нужной форме 4.they___swimming in the river now5.we____not fighting,we___playing6.i___trying to speep.7.linda ___not playing tennis,she and Tina___jogging8.we___not working on the project now,but Steven___trying to finish it.9.Birds____sitting on the benck,but my cat____getting ready to jump on it