[ Verb Tenses ]
The students _____ the experiment before we arrived.
A. were already performing
B. had already performed
C. already had performed
D. performed already

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Used to - Would - TensesPresent and Past TensesLinking WordsWish, Unless, If sentenceEmployment VocabularyVocabulary : Coming & GoingWill or Going toPast Progressive TenseModals of ProbabilitySentences vs Run-OnsOther quiz:
Relative Clauses › ViewI don’t like the stories __________ unhappy endings.
A. having
B. which have
C. with
D. All are correct
Grammar › View
If Ihad known you were sick,
A. I could have visited you.
B. I would have visited you.
Grammar › ViewWhich sentence is correct?
A. She and her friend is coming over.
B. She and her friend are coming over.
C. She and her friend am coming over.
D. She and her friend be coming over.
Grammar › View
Some teens have the awful habit of smoking. ________________, I don’t like it at all.
A. however
B. or
C. so
