Предмет: Алгебра, автор: romomel307

Упростите выражение (6a-3)(a+1)-3a(2a-3)

Ответы

Автор ответа: klimboy2014

Ответ:

12a - 3

Объяснение:

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When I arrived, Tom (lie) on the sofa and (speak) over the phone.
lied, spoke
was liing, speaking
was liing, was speaking
was lying, was speaking
The police caught Dan when he (rob) a shop.
has robbed
was robing
was robbing
robed
He couldn’t speak because he (die) of laughtеr.
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were dying
was dying
was diing
- What you (do) between one and two? I phoned you several times. - I (play) the piano and heard nothing.
will you do, ’ll play
are you doing, am playing
were you doing, was playing
was you doing, was playing
When I got up that morning, the sun (shine) brightly and the birds (sing).
shone, sang
was shining, were singing
were shining, was singing
When you rang me yesterday, I (have) a bath.
were having
had
had had
was having
Somebody stole the money from Dad’s pocket while he (sleep).
slept
was sleeping
were sleeping
I (sit) by the window when I heard the noise.
was sitting
sat
sitted
It (rain) cats and dogs as I (walk) towards their house.
rained, was walking
rained, walked
were raining, was walking
was raining, was walking
Just as Tom (cross) the street, a car came round the corner.
crossed
were crossing
was crossing
I glanced at Mary who (still/ shiver) from the cold.
still was shivering
were still shivering
still shivered
was still shivering
At six o’clock I (wait) for Jennie at the station.
am waiting
will wait
wait
On coming up to the house I saw a man who (try) to unlock the door by force.
tried
was trying
The student (reply) to the question when the headmistress came in.
had replied
was replying
was repliing
I saw a light in your window as I (pass) by.
was passing
had passed
passed
16. Liz’s elder brother said that he (go) to enter Leeds University.
will go
would go
was going
While my son (wait) for my call, somebody knocked at the door.
had waited
was waiting
waited
We (just/talk) about him when he suddenly (come) in.
were just talking, was coming
just were talking, came
were just talking, came
They (quarrel) while they (wash) their car.
quarreled, were washing
were quarelling, were washing
were quarreling, washed
Yesterday while Dad (shave), he (cut) himself slightly.
shaved, cut
was shaving, cut
was shaving, cutted

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