The correct answer is "is warm," which uses the verb "to be" and the adjective "warm" to describe the weather.
Adjective
If you've ever written a French nice old wooden table and felt something was wrong without knowing why, you've hit the adjective-order rule. English insists on a particular sequence — opinion, size, age, shape, colour, origin, material — and rearranging the words makes a sentence sound non-native even when every individual choice is correct.
An adjective describes a noun or pronoun: a tall building, the soup is hot. Most adjectives also take comparative and superlative forms (taller, tallest), which is how you compare things — another core piece you need from day one.
Verb
If grammar feels overwhelming, the fix is almost always to focus on verbs first. They carry the action, the time, the mood, and the voice — a single verb form decides whether your sentence reads as past or present, fact or hypothetical, active or passive. Get verbs solid and the rest of grammar suddenly looks much smaller.
A verb expresses action, state, or occurrence — the engine of every English sentence. Most verbs have five forms (base, -s, past tense, past participle, -ing); be has eight; modal verbs have fewer. Verbs carry tense, aspect, mood, and voice.
Be
If your first weeks of English felt like a battle with am, is, are — you've already met the most common verb in the language. Every form of be is irregular, and you can't avoid them: they're in introductions, descriptions, questions, the present continuous, the past, and the passive voice. Get them automatic and the rest of English grammar gets noticeably less stressful.
The verb be has eight forms — be, am, is, are, being, was, were, been — more than any other English verb. Functions as a copula linking subject to complement (She is a doctor) and as an auxiliary for progressive tenses and the passive voice.
Adjective and adverb
If you've ever wondered why she sings beautifully sounds right but she sings beautiful sounds wrong, you've bumped into the adjective-vs-adverb split. Pick the wrong one and the sentence sounds clearly off — even though native speakers couldn't always tell you the rule. Getting this distinction reliable is what makes descriptions land instead of stumble.
Adjectives describe nouns: a fast car, the soup is hot. Adverbs describe verbs, adjectives, or other adverbs: he drove fast, unbelievably smart. The same word can flip roles — fast covers both — but most words don't.
A1 | Elementary | Beginners
If you can say your name, ask Where is the toilet?, and read a simple bus sign — but freeze when someone speaks at normal speed — you're at A1. That's not a problem to fix; it's the level where most learners actually live for a while, and recognising it lets you pick the right material instead of drowning in advanced grammar that wasn't meant for you yet.
A1 is the starting level of the CEFR framework, covering basic everyday communication: greetings, introductions, simple personal questions, present-tense forms of be/have/do, and core determiners and prepositions.
Difficulty: Easy
If a textbook leaves you confused, sometimes the issue isn't the topic — it's that the practice material is layered with extra complications. Filtering by Easy strips that away. You get one rule at a time, in plain everyday language, with no trick questions. It's how you make a shaky foundation solid before stacking more on top.
The Easy difficulty tag marks beginner-level questions and challenges — typically A1 or early A2. Single-rule focus, short sentences, common vocabulary, one clear correct answer.