[ Past and Present Tenses ]
Which tense do we use when no specific time in the past is mentioned?
A. Present Perfect
B. Past Perfect

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Tenses PracticeModals of Necessity and SuggestionPresent simple, Present continuous, Singular, PluralVerb-ing and InfinitiveIrregular verbsMoods of GrammarGiving and Asking for AbilityUsed toArticles & PrepositionGrammar Pronoun and Singular Plural NounOther quiz:
Adverbs › ViewEVERY word that ends with the suffix -ly is an adverb.
A. TRUE
B. FALSE
Grammar › View
Li Hong and Li Khai ________ an aeroplane right now.
A. board
B. boarding
C. is boarding
D. are boarding
