Grammar and vocabulary through meaning and context
Grammar and vocabulary work together to express meaning. Start with the whole sentence, the speaker's intended time or relationship and the words around a gap. A word may be grammatically possible but unsuitable in meaning or collocation. Conversely, the correct idea may need a different word form. Read the completed sentence again and check that it expresses the intended message rather than selecting an answer only because a nearby word looks familiar.
Time, aspect and condition
Distinguish a completed past event from experience or a situation continuing into the present. Compare She visited last year with She has lived here since last year. The time expression is important evidence, but it does not replace understanding the full meaning. In conditionals, identify whether the speaker describes a real possibility, an imagined present situation or an unreal past. Had I known is an inverted form of If I had known; it is not a question merely because the auxiliary precedes the subject.
Sentence structure
Find the main subject and verb before deciding agreement. Identify whether a clause adds information, identifies a noun, expresses purpose or creates another relationship. Punctuation can distinguish defining and non-defining relative clauses. The museum, which opened recently, is busy adds information about an already identified museum. A passive construction changes information focus and should preserve the original tense and essential meaning. Avoid changing a possibility into a certainty when rewriting.
Words, phrases and register
Learn collocations and phrasal verbs in sentences: pay attention, make a decision, put off a meeting. A dictionary synonym is not automatically interchangeable in every context. Check complement patterns, prepositions, countability and tone. Word formation may require a noun, adjective, verb or adverb; resilience and resilient belong to different grammatical categories. Distinguish a familiar literal meaning from a contextual or idiomatic use.
Check and extend
For each error, record the intended meaning, the chosen form and why a competing form fails in this sentence. Then write a new sentence that tests the same distinction. At more advanced levels, attend to inversion, hedging, complex modification and precise lexical choices. For foundational practice, secure the core distinction before adding complexity. These shared exercises are not an independently calibrated measure of a particular examination level. Actual writing and speaking are needed to demonstrate that the language can be used productively, not only recognized among four options.