Афанасьева, Михеева, Баранова, 7. Учебник. Unit 1. Step 8

1) computer studies;
2) English;
3) physics and maths;
4) physical education.

A.
1) dictation;
2) collection;
3) education;
4) illustrations;
5) celebrations;
6) decorations.
В.
1) swimmers;
2) unusual;
3) powerful;
4) unfriendly;
5) loudly;
6) sandy;
7) beautiful;
8) warmly.

1) is;
2) am lying;
3) hear;
4) get;
5) stay;
6) will be;
7) is;
8) did not wash;
9) run;
10) do not have;
11) run;
12) will/shall be able;
13) is;
14) will be;
15) come;
16) eat;
17) have.

1) out of;
2) back;
3) over;
4) into/out of;
5) into/out of;
6) into;
7) back;
8) over.

1) out of;
2) over;
3) into;
4) over;
5) back;
6) into;
7) out of.

Countables: tomato, sea, hill, raincoat, daybook, exercise.
Uncontables: sand, juice, sugar, bread, jam, butter, snow. Cake can be both countable and uncountable.

1b, 2b, 3c, 4a, 5b.