I'm sorry I can't hear what you (say) because everybody (talk) so loudly. I (study) math at the moment.​

I'm sorry l can't hear what you said because everybody have talked so loudly.

I'm studying Math at the moment.

Объяснение:

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1.the solar sail will destroy the asteroid.

the solar sail won't destroy the asteroid.

will the solar sail destroy the asteroid?

2.we'll be able to have holidays in space soon.

we won't be able to have holidays in space soon.

will we be able to have holidays in space soon?

3.they're going to send a manned spaceship to mars.

they aren't going to send a manned spaceship to mars.

are they going to send a manned spaceship to mars?

4.mark is going to be an astronomer.

mark isn't going to be an astronomer.

is mark going to be an astronomer?

5.you'll have to wear a spacesuit.

you won't have to wear a spacesuit.

will you have to wear a spacesuit?

1)if you waste your time like this, you won't be ready with your task. - если ты будешь так тратить своё время, ты не успеешь выполнить своё .

2) you would regret it afterwards, if you fail оn the exam. - после ты будешь об этом сажалеть, если провалишься на экзамене.

3)if i were you, i would apologize. - будь я тобой, я бы извинился.

4)if i had the opportunity to leave for a foreign country, it wold be england. -  если бы у меня была возможность уехать в другую страну, то это была бы .

5)will you be angry, if i won't come? - ты будешь злиться, если я не приду?

6)if we had enough petrol, we would be there on time. - если бы у нас было достаточно бензина, мы бы приехали вовремяю