The correct answer is "She has completed the assignment." The present perfect tense has plus past participle is correctly formed.

The correct answer is "Rise". Rise is a synonym for increase, meaning to go up or become larger.

The correct answer is "taller". The word than indicates a comparative form. Taller is the comparative of tall.

The correct answer is "However, it was too late." The conjunctive adverb however should be followed by a comma when it begins a sentence.

The correct answer is "In conclusion". In conclusion is a formal phrase used to introduce a summary in academic writing.

The correct answer is "Important". Significant and important are synonyms, meaning having great meaning or consequence.

The correct answer is "If I were you, I would apply early." The second conditional uses were for all persons with if I, and would plus base verb.

The correct answer is "as". The structure as expected means in the way that was expected, using as as a conjunction.

The correct answer is "It is essential to address this issue promptly." This sentence uses formal vocabulary and structure suitable for academic writing.

The correct answer is "The report was written by her." The passive voice uses the past participle written after the appropriate form of to be.

The correct answer is "A". The word university begins with a consonant sound yoo, so the article a is used.

The correct answer is "However". However is a connector used to show contrast between two ideas.

The correct answer is "in". The correct preposition after interested is in.

The correct answer is "Children". Child is an irregular noun; its plural form is children.

The correct answer is "He doesn't like coffee." For third person singular, the negative uses doesn't plus the base form of the verb.

The correct answer is "It can be argued that". This is a strong academic phrase that presents an argument without personal language like I think.

The correct answer is "through". Through indicates the means or method by which success was achieved.

The correct answer is "She has lived here for ten years." The present perfect tense with for plus duration is correctly formed.

The correct answer is "Significant". Significant is a more formal and precise academic alternative to big.

The correct answer is "This issue has significant implications for society." This sentence uses advanced vocabulary and a formal structure appropriate for a high IELTS band score.