The correct answers are Three heavy boxes of books and Several comfortable pillows.
In English, you must add -s or -es to show that there is more than one countable item (boxes, books, pillows).
However, uncountable nouns like furniture, information, or water do not take an -s. "Two new wooden furnitures" is incorrect; you would say "Two pieces of wooden furniture."
Grammatical number
Grammatical number is the singular vs plural distinction marked on nouns, pronouns, and verbs. Most English nouns add -s or -es to form plurals (book → books, box → boxes), but a handful keep older patterns: child → children, foot → feet, mouse → mice, sheep → sheep. Pronouns swap forms entirely (I → we, he → they).
Number governs subject-verb agreement: He goes but They go. Mismatching subject and verb (The team are/is winning) is one of the most common slips in writing — and one that catches the attention of any careful reader.
Countable and uncountable
In English, nouns split into two groups based on whether you can count them. Countable nouns (chair, book, idea) take a/an, form plurals (chairs), and pair with many, few, several. Uncountable nouns (water, furniture, advice, information) take no article in their general sense, have no plural, and pair with much, little, some.
This distinction matters because it controls article choice, plural marking, verb agreement, and quantifier selection — fewer chairs vs less water, an advice (wrong) vs some advice. It's one of the most common error sources for learners from languages without this split.
A2 | Elementary | Pre-intermediate
A2 is the elementary level in the CEFR framework, sitting between A1 and B1. At A2 you can handle routine exchanges — ordering food, asking directions, making small talk — and describe your immediate environment in simple sentences.
Grammatically, A2 introduces past simple and past continuous, present perfect for experiences, basic modal verbs, and the first conditional. You're also picking up collocations and learning which verbs take gerunds vs. infinitives. Knowing your level here is the difference between confident progress and frustration: A2 material consolidates the basics; B1 will overwhelm you.
Difficulty: Easy
The Easy difficulty tag marks questions and challenges aimed at beginners — typically A1 or early A2 level. Expect single-rule focus, short sentences, common everyday vocabulary, and one clear correct answer. Distractors usually rule themselves out quickly.
Filter by Easy when you're rebuilding fundamentals, warming up before harder material, or testing whether you've truly internalised a basic rule before moving on. Easy doesn't mean trivial — it means the rule itself is unambiguous and the context doesn't pile on extra complications.