Topics: Simple and Continuous Present Tense
Zack ………………… when he doesn’t understand.
A. asking questions
B. ask questions
C. asks questions
D. am asking questions
Select your answer:

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Conjunctive AdverbsTenses, Tag Questions, Phrasal VerbsComparisionsVerbal CommunicationTensesGrammar (was, were, could, could not)Grammar - must & have toPresent Perfect & Past Simple TenseAdverbial PhrasesNounOther quiz:
Grammar › View_____ George _____ his brother is very tall.
A. Neither, and
B. Neither, nor
C. Either , and
D. Either, nor
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“The maid has forgotten to clean the windows again, ____ she?” queried my mum.
A. did
B. didn’t
C. has
D. hasn’t
