[ Tenses ]
She ______ from her job and started a new business when she turned 50.
A. used to retire
B. has retired
C. was retiring
D. retired

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Simple Past vs Past Continuous TenseWish SentencePassive Voice with Modal VerbsModals in the Past - Speculation and DeductionModal RequestsPhrasesSimple Verb TensesLexico and GrammarPresent Simple: affirmative, negative, interrogativeVocabulary and Modal VerbsOther quiz:
Flesh out vs. Flush out › ViewContact your local water company to … sediments out of your water pipes.
(a) flesh
(b) flush
Modal Verbs › View
We agreed to meet yesterday but when I got there I didn’t see him. He … elsewhere.
A. should have been waiting
B. could have been waiting
C. should be waiting
D. could have wait
Grammar › View…………….you at home now?
A. Is
B. Am
C. Are
D. Be
Gerunds and Infinitives › View
It is dangerous ______ fast.
A. to ride
B. riding
