[ Tenses ]
The headmaster _____ (enter) the classroom when they _____ (write) their exams.
A. was entering/wrote
B. entered/were writing

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Simple Past Tense and Present Continuous TenseModals and TensesModals Posibility and ProbabilityConjunctionComparative - SuperlativeTenses and Word FormationGrammar (Possessive Pronouns)Grammar: Reported QuestionsAdverb of FrequencyQuantifiers and ArticlesOther quiz:
Grammar › ViewI usually ________________ (wear) a jacket when I am outside.
A. wearies
B. wears
C. weares
D. wear
Grammar › View
I wish ________ my language skills.
A. to worsen
B. to ignore
C. to improve
D. to decrease