It shows an activity that had been happening before another activity in the past is the form of…
A. Past Perfect Tense
B. Past Continuous Tense
C. Past Perfect Continuous Tense
D. Simple Past Tense
Random Topics:
Modal Verbs - ObligationAdverbs of Manner, Likes and PreferencesArticles & PrepositionPassive Voice - Present ContinuousQuantifiers & Modal VerbsVerbal PhrasesPast Simple or Past ContinuousFigure of SpeechPunctuationsIf ConditionalsOther quiz:
Sentence Structure and Conjunctions › ViewWhat is the subordinating conjunction?
Do not touch the paint until it dries.
A. it
B. not
C. touch
D. until
Grammar › View
Life in the country may not be as exciting as life in the city. ______, you are close to nature which provides peace and quietness.
A. Nevertheless
B. Although
C. Despite
D. In spite of
Grammar › ViewI ______ either the basketball team or the volleyball team. Which team should I join?
A. can join
B. can joined
C. can joining
D. can to join
Modal Verbs › View
Scientists fear that a patient’s immune system _____ stem cells unless they _____ genetically identical to the patient’s other cells.
A. may reject / are
B. may have rejected / were
C. could reject / had been
D. has rejected / has been
E. would be rejected / were