[ Phrasal Verbs ]
Scientists have recently …………….. research on blood lead levels of athletes.
A. carried out
B. found out
C. narrowed down
D. resort to

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Present Simple Affirmative and NegativeGrammar PhrasesPresent ContinousPresent Tense (Negatives and Questions)Present Perfect Simple vs ContinuousInfinitives and GerundsNouns as AdjectivesGrammar: Defining Relative ClausesPreposition and Word FormDependent PrepositionOther quiz:
Modals Tenses › ViewWhen they heard the people say, “this … be the Son of David?” they became angry, more at that than at the miracle itself.
A. could
B. should
C. managed to
D. ought to
E. is able
Present Tense › View
It _____ cool in Arequipa today.
A. is
B. was
What is the past tense form of the verb “fight”?
A. fighted
B. fought
C. fight
D. fighting
Modals › View
____ we go to the beach this weekend if the weather is nice?
A. Shall
B. Might
C. May
D. Would