Заполнить пропуски!
Build your own telesccpe

if you 1___ (want) to see the stars and
planets, you 2_ (can) make
your own tetescope. All you need is a
cardboard tube — the ones you 3___ (use) if you want to send

a poster by mail — and a couple of lenses,
Make sure you cut the tube very straight.
This is important, as you 4_
(not be able to) change the focus unless

it 5_ (be) absolutely straight.
Then attach the lenses inside the tube.

You can just slide them in, but if you 6_ (need) to make them
secure, giue them in carefully. Finaiiy,

cover the other end of the tube with card
and make a small hoie In the end to look
through. Now you're ready to look at the
stars! It’s not the world's most powerful
telescope, but if you 7_ (use) it
on a clear night, you get some good views
If i 8_ (not have) mine,

I wouldn’t see so much of the night sky.

самому слабо

Объяснение:

past:

1)when were you born? i was born in 1980.

2)the light went off and the orchestra started playing.

3) when i came into the kitchen mother was cooking dinner.

4)we had been washing the floor from 3 till 4 yesterday.

5)at 7 yersterday i was playing the piano.

6)when i came home mother had already cooked dinner.

7)tom had translated the text by 7.

8)she had been seeing the film for 1 hour when i rang her up.

9)where were you yesterday?

10) did you finish school last year?

future:

will you go to the party with me?

they will buy a car tomorrow.

поставь мне "лучшее решение", если несложно.

b: then where have you been? (present perfect)

a: oh, nowhere. i wanted (past simple) to go to america two years ago,but now i don't want to go there.

b: why?

a: i understood (past simple) that my wish is impossible, so i abandoned(past simple) that idea. 

и 2-я

b: have you heard some interesting news? (present perfect)

a: no.

b: i heard (past simple) that brian flunked (past simple) his exam last week. 

a: why did (past simple)he flunk the exam?

b: he lost (past simple)his homework, so he didn't repeat a topic.(past simple)