a The plane (leaves)in half an hour but Nick (is not) at the airport yet. b My best friend (loves) science fiction films but they (do not interest) me. c I (do not study) chemistry because it (is) difficult. d I (do not dance) because I (look) stupid. e The Sun (does not go) round the Earth, the Earth (goes) round the Sun! f My new computer (does) lots more things than my old one, and it (does not crash) g My dad (does not have) any qualifications but he (has) got a really good job. h Fire (needs) oxygen to burn. It (does not burn) without oxygen. i My teacher (does not own) a mobile phone because some people think they (are) bad for your health. j According to scientists, animals (live) longer if they (do not eat) too much.
b My best friend (loves) science fiction films but they (do not interest) me.
c I (do not study) chemistry because it (is) difficult.
d I (do not dance) because I (look) stupid.
e The Sun (does not go) round the Earth, the Earth (goes) round the Sun!
f My new computer (does) lots more things than my old one, and it (does not crash)
g My dad (does not have) any qualifications but he (has) got a really good job.
h Fire (needs) oxygen to burn. It (does not burn) without oxygen.
i My teacher (does not own) a mobile phone because some people think they (are) bad for your health.
j According to scientists, animals (live) longer if they (do not eat) too much.
2.
b. doesn't play, doesn't like
c. don't think
d. don't work
e. doesn't agree
f. don't want
g. doesn't drive
h. aren't
i. don't stay
j. doesn't sing
3. a. isn't
b. loves, don't interest
c. don't study, is
d. don't dance, look
e. doesn't go, goes
f. does, doesn't crash
g. doesn't have, has
h. needs, doesn't burn
i. doesn't own, are
j. live, don't it
4. live - provides - dive - hold - stand - keeps - breeds - lays - return - stands - keep - sleeps - eats - hatches - comes - finds -feed - spends - returns - look after