A rucksack is sometimes called a ___ sack.
Present Continuous TenseCoordinate Conjunction Gerund vs. Infinitiveand, so, but, becausePast simple regular verbsPast Simple - Present PerfectKinds of NounsPresent Simple/AffirmativePresent Simple: affirmative, negative, interrogative
Other quiz: Vocabulary and Grammar
what is the past participle of the word “shake”?
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