Ответ:
1) potatoes
2) photos
3) matches
4) these
5) third
6) eighth
7) fifth
8) three (не уверена)
9) third
10) first
11) second
12) dress
13) dresses
14) that
15) those
16) these
17) this
18) that
Объяснение:
1 - 3 предложения - единственное - множественное число, меняется от добавления буквы s, тип dog - dogs
5 - 11 предложения - нужно знать эти first, second, third, fourth - первый, второй, третий, четвертый
12 - 13 предложения - единственное - множественное число
14 - 18 - те, эти - this - that; these - those
1.
Harder the hardest
Warmer the warmest
Colder the coldest
Ligther the lightest
More frightened the most frightened
Cleaner the cleanest
More polite the most polite
Sharper the sharpest
More attractive the most attractive
Wider the widest
Thinner the thinnest
Larger the largest
Lazier the laziest
Worse the worst
Less the least
Safer the safest
Better the best
Darker the darkest
Dirtier the dirtiest
Sweeter the sweetest
Sadder the saddest
Faster the fastest
Happier the happiest
More interesting the most interesting
Longer the longest
Larger largest
More active the most active
More amazing the most amazing
More comfortable the most comfortable
Braver the bravest
2.
Good
Funny
Salty
More
Sharp
Bad
Silly
Fine
Light
Happy
Eld
Old
Big
Dark
Hot
Sweet
Dirty
Attractive
Comfortable
Sharp
Deep
Hot
Good
Little
Bad
Dangerous
We are having a lot of fun now
1.You should not be late. 2. This book is very valuable. You must not lose. 3.I have to admit that I'm wrong. 4. I need to work hard on his English. 5. You must listen carefully to the teacher in class. 6. You must do homework every day. 7. You should not forget about their duties. <span>8. Must be very difficult to perform such exercises.</span>
Bird-птица
Nesting box-скворечник