Complete the sentence with the affirmative or negative form of the verb in brackets. Use contractions. a The plane (leave)........................in half an hour but Nick (not / be) ............................................at the airport yet. b My best friend (love)............................................science fiction films but they (not / interest) ............................................me. c I (not / study)............................................chemistry because it (be)............................................difficult. d I (not / dance)............................................because I (look)............................................stupid. e The Sun (not / go)............................................round the Earth, the Earth (go)............................................round the Sun! f My new computer (do)............................................lots more things than my old one, and it (not / crash)............................................ g My dad (not / have)............................................any qualifications but he (have) qj ............................................a really good job. Q. h Fire (need)............................................oxygen to burn. It (not / burn)............................................ without oxygen. i My teacher (not / own)............................................a mobile phone because some people think they (be)............................................bad for your health. (U j According to scientists, animals (live)............................................longer if they (not / eat) Q. ............................................too much.