Афанасьева, Михеева, Баранова, 7. Учебник. Unit 4. Step 9

1d, 2b, 3е, 4a, c — extra.

1d, 2g, 3e, 4a, 5c, 6b, f — extra.

1) Have you ever been, did you do, was, went;
2) have you finished, am, have you been doing, have been doing, will you finish, think, I’ll finish;
3) When were you, was, have not been, don’t you go, don’t like, prefer;
4) Have you done, am doing, have you been doing, have been doing, have cleaned.

A.
Nouns: human, insect, relative, soil, species, support, twin;
verbs: breathe, close, hide, include, support;
adjectives: close, common, curious, human, lovable, other, scientific, similar;
adverbs: close, especially.
B.
Plants: sunflower, eucalyptus, elm, bluebell, beech, oak;
insects: moth, butterfly, caterpillar, dragonfly;
birds: canary, swan, crow, jackdaw, goose, duck, turkey;
animals: ape, elk, horse, lion, hare, goat.

1e, 2d, 3f, 4b, 5c, 6a.

1) for;
2) flew;
3) ever;
4) on;
5) the other day;
6) the others;
7) yet;
8) another;
9) out;
10) off.