[ Tenses ]
Which tense do we use to talk about an action that happened before another past time, action or event.
A. past simple
B. past continuous
C. past perfect

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Grammar and ReadingGrammar MistakesAdverbs of TimeSimple Present Tense with Adverb of FrequencyConjunctions in Complex SentencesTime PhrasesProgressive TensesPresent and Past Simple PassiveModal and Relative PhrasesUsed to & would & Past SimpleOther quiz:
Vocabulary › View______ is a chemical reaction between substances, which usually includes oxygen and produces heat and light.
A. Combust
B. Combustion
C. Combustible
D. Combusted
Grammar & Vocabulary › View
. A public limited company is one whose ___________ are listed on a stock market. In other words, ordinary people can buy and sell shares in the company.
A. firms
B. liability
C. shares
Determiners › View____ were killed in World War II.
A. Much
B. Many
C. Few
D. A few
Tenses › View
We ___ the poem now.
A. did not read
B. do not read
C. are not reading
