х - время, которое плыла лодка по течению реки
10+2=12 (км/ч) - скорость лодки по течению
10-2=8 (км/ч) - скорость лодки против течения
12*х=8*(5-х)
12х=40-8х
12х+8х=40
20х=40
х=40:20
х=2 (ч)
Ответ: 2 часа лодка плыла по течению реки
21. she’s walking to school
22.are they reading?
23. is your grandmother eating sweets?
24. John is cooking the dinner
25. Bill is running in the park
1) Which it is page?
2)-
3)-
4)Can I come in?
5) Have you got a pen?
<span>1. <u>general question</u>
– Does somebody play the piano every morning?</span>
<span>2. <u>special question</u>
– When does somebody play the piano?</span>
<span>3. <u>disjunctive
question</u> – Somebody plays the piano every morning, don't they?
</span><span>4. <u>alternative
question</u> – Does somebody play the piano or the violin every morning?
</span><span>5. <u>question to the
subject</u> – Who plays the piano every morning?</span>