[ Verb Tenses ]
While he was writing to his friend, he __________a noise upstairs.
A. was hearing
B. had heard
C. heard
D. hears

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Verbal TensesModals for Necessity and SuggestionsVocabulary Spelling GrammarComparatives - SuperlativePast PassiveAdjectives, Adverbs, and PrepositionsAdverbs of Frequency & Simple Present TenseSports VocabularyWill and Will notTenses and StructuresOther quiz:
Phrasal Verbs › ViewIn South Africa, robbers sometimes….drivers when they are stopped at stoplights.
A. blow up
B. break into
C. wear out
D. hold up
Grammar › View
A complex sentence
A. contains at least one independent clause and one dependent clause.
B. expresses a complete thought and can stand by itself as a sentence.
C. begins with a subordinating conjunction.
D. renames another noun right beside it.
Grammar › ViewHe didn’t understand at all what I did say.
A. correct
B. incorrect
Present Perfect Tense › View
My sister … ridden a bicycle. She is afraid that she will fall off.
A. never
B. has never
C. has ever
D. has not
