Найдите сумму чисел:1+2-3-4+5+6-7-8+9+10-...+1001

1. We've been invited (for, from, to) a wedding.

2. He often visits his parents on (-, a, the) Sundays.

3. Students often (think) that exams are a nuisance.

4. When the water (boil), turn off the gas, will you?

5. Ann (not, recover) yet. She is still in hospital.

6. When they (get married)? - Last year.

7. It still (rain).

8. - Who told you about it? - A friend of (mine, my).

9. She is (good) secretary that has ever worked here.

10.  We (arrive) ten minutes ago.

11.  You (read) any of Shakespeare's plays?

Решите пожалуйста задачу:За 12 сикунд автобус проезжает 200 метров.Какое растояние проезжает автобус за 1 минуту?за 6 минут?

КАКОВА СРЕДНЯЯ КВАДРАТИЧНАЯ СКОРОСТЬ ДВИЖЕНИЯ МОЛЕКУЛ ГАЗА, ЕСЛИ, ИМЕЯ МАССУ 6 КГ, ОН ЗАНИМАЕТ ОБЪЁМ 5М(В КУБЕ) ПРИ ДАВЛЕНИИ 200кПа ?

составте в тетраде план ответа:"демократической реформы во франции;