Надо task 1. use the prefixes dis- or un- to make new words. 1) believe - 2) common - 3) usual - 4) like - 5) agree - 6) polluted - 7) appear - 8) honest - 9) healthy - 10) comfort - 11) natural - 12) happy - 13) please - 14) real -

1 unbelieve
2 uncommon
3 unusual
4 dislike
5 disagree
6 unpolluted
7 disappear
8 dishonest
9 unhealthy
10 discomfort
11 unnatural
12 unhappy
13 unpleased
14 unreal

1 My brother ( was drinking) coffee while he (was doing) his homework. 2 He (walked) into the classroom, then he (sat) down. 3 While I (was studying), Sue (was running) into the library. 4 When the class (finished) , the teacher (drove) home. 5 Harry (was singing) a song when Jane (came) in. 6 Nothing happened when I (turned on) the DVD player. 7 It (started) to rain while I (was walking) to the park. 8 Yuki (was listening) to the radio when the phone (rang). 9 The children (went) the cinema last night. 10 Mr. Jones (found) some money when he (was cleaning) the cupboards

1. + John always went to the gym
- John didn’t go to the gym
? Did John go to the gym ?
2.-We didn’t jump into the swimming pool
+ we jumped into the swimming pool
? Did we jump into the swimming pool
3. +Kevin ran to school yesterday
- Kevin didn’t run to school yesterday
?Did Kevin run to school yesterday
4. + she studied biology last year
- she didn’t study biology last year
? Did she study biology last year
5. + it began to rain
- it didn’t begin to rain
? Did it begin to rain ?
6. ?What did you drink in the morning?
7.- we didn’t play football for hours
+ we played football for hours
? Did we play football for hours