[ Grammar ]
When Jack _______ me, I ________ a letter.
A. was phoning/ wrote
B. phoned/ has been writing
C. phoned/ was writing
D. has phoned/ was writing

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must/shouldReflexive pronouns-ing form and the to-infinitiveAdjectives or AdverbsPast Simple (to be)Personal PronounsGrammar, Conditional Sentences, VocabularyGrammar and Verb TensesPresent ProgressiveDefinite and Zero ArticleOther quiz:
Passive Voice › ViewThe fire has destroyed the house.
The house ________________ by the fire.
A. has been destroyed
B. was being destroyed
C. is destroyed
Modals › View
What modal verb would you use to give advice?
A. would
B. might
C. could
D. should