Put the verbs in brackets into correct tense and voice form. 1) Teenagers . . . (prefer) original and eye-catching clothes. 2) Isaac Newton . . . (discover) the law of gravitation in 1665. 3) A person who spends too much time w...

Put the verbs in brackets into correct tense and voice form. 1) Teenagers . . . (prefer) original and eye-catching clothes. 2) Isaac Newton . . . (discover) the law of gravitation in 1665. 3) A person who spends too much time watching TV . . . (call) a "couch potato". 4) The game of basketball . . . (invent) by James Naismith in 1891. 5) Public TV usually . . . (focus) on education and culture. 6) She . . . (wrok) as a babysitter when he was 16.