1. Bill and Tom ... in the café.

1. a) are (Bill and Tom — plural subject, use 'are') 2. c) an (before a vowel sound) 3. a) leafs (Wait, actually 'leafs' is usually 'leaves'. But looking at the options, perhaps it's a typo in the test, or 'leafs' is treated as plural in this specific context. Actually, 'a lot of leaves'. 'Leafs' is incorrect plural of 'leaf'. Given the options, I will choose a) but note it's likely a typo for leaves, or perhaps the subject is something else. Actually, let's re-read the option b. It's 'leave'. Option c is 'leaves'. Definitely 'leaves' is the plural, so c) leaves.) *Correction on 3*: c) leaves 4. b) behind (Most logical preposition for a tree in relation to a house) 5. a) hairdresser (They cut your hair) 6. b) is listening (Present Continuous for an action happening now) 7. b) goes camping (Present Simple for habitual action 'every summer') 8. b) Medium (It's a size) 9. a) some or b) a bottle of. Usually, 'We need some milk' is common. Both are grammatically possible depending on context, but 'some' is more general. Let's assume a). 10. a) some (Butter is uncountable) 11. b) first (Ordinal number for a floor) 12. a) Where (Used for locations) 13. a) Spain (You come from a country) 14. a) us (Give us...) 15. b) shorts (Clothes for hot weather) 16. b) these (Plural demonstrative for 'shoes') 17. a) Lory's (Possessive case) 18. a) It's freezing (Describes weather) 19. a) at 6 (Time preposition) 20. c) at (for breakfast)