Practice Questions

Necessary' is correct.

Have gone' (past participle) is the correct perfect tense form.

Prettier' is the correct comparative form.

The subject is 'books' (plural).

Subject pronouns ('He' and 'I') are required for the subject of the sentence.

Definite' is the correct spelling.

Its' is the possessive pronoun; 'it's' is 'it is'.

Apples' is plural, requiring the plural demonstrative 'These'.

Either/or' agrees with the nearest subject ('students'), which is plural.

Well' is the adverb modifying 'writes'. 'Does' matches the singular subject 'she'.