[ Tenses ]
They heard a noise _____ they were learning Chemistry.
A. when
B. while
C. before
D. after

Random Topics:
Vocabulary and IdiomsInterrogative Pronouns & AdverbsContrastive ConjunctionsSimple Present Tense with Adverb of FrequencyThere is or There areGrammar - to be, possessive, have gotAdjective ClauseAdjectives, Adverbs, and PrepositionsIndefinite and Reflexive PronounsGrammar: AgreementOther quiz:
Grammar › ViewDo you enjoy __________ board games?
A. play
B. to play
C. playing
D. played
Articles and Pronouns › View
What is a pronoun?
A. A word that takes the place of a noun.
B. A word that takes the place of verbs.
C. A word that takes the place of adjectives.
D. A word that takes the place of adverbs.
Grammar › ViewHe bitterly resents ______ like a child.
A. treating
B. treat
C. to be treated
D. being treated
Present Simple or Present Continuous › View
I ___ the grass every week.
A. cut
B. ‘m cutting
