20 Fill in the correct tense, then say what type of
conditional each sentence is.

1 She will miss the train unless she .
(come) now.

2 If you mix red and blue paint, you . (get) purple

3 I . (come) to the concert if
there are any tickets left.

4 If you wear that coat, you . (be) too hot

5 He'll go to university unless he .
. (fail) his exams

6 If you . (pour) oil on water, it floats.​

1. i must brush my teeth. - anyone, most likely some disobedient child.

2. i have to brush my teeth. - a patient of dentist's, a human with diseased tooth.

3. i must tidy my room. - anyone, most likely some disobedient child.

4.i have to tidy my room. - anyone, probably a child.

5. i must take the medicine. - someone with easy form of illness.

6. i have to take the medicine. - most likely, a regular patient

том это номер1, крис номер 2!

1: chris, what are you   doing?

2: i'm watching tv

1: oh no, i would like to watch tv. can you stop watcing tv? i need watch footbool.

2: no, i can't. i want to watchig tv program about animals.sorry.

1: can you watch tv later?

2: no, i can't because i not want to watcing tv later. i want now!

1: please.

2: ok, but i will watch tv after you.

1: oh thanks a lot.  

if five years ago i was asked about how i think the city of the future, then certainly i would say that this city, where instead of buses, trams and trolley buses carrying passengers spaceships and people run the factories, mills, a fully automated and subordinate to computer programs. the children in this town do not know no worries: at their disposal the best toys, rides, computer games but the years pass, we get older and realize that children's dreams - it's just fantasy. the city of my dreams - a modern metropolis with a lively, neat, comfortable houses in which there is heat and electricity, in which no water and sewer breaks, forming a fetid rivers and lakes, which are working elevators, and entrances are like showrooms.