[ Grammar and Vocabulary ]
The researchers ………………… many experiments to find the most effective materials.
A. considered
B. confirmed
C. concerned
D. conducted

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ConjunctionsPossessive Pronouns and Adjective PronounsObject PronounDefinite and Indefinite ArticleAdverbial Clauses of Reason / CauseSo or SuchThird ConditionalGrammar: is/are/was/wereUsed toAdverb of MannersOther quiz:
Tag Questions › ViewYou will be there on time, ___________
A. won’t you?
B. will you?
C. do you?
D. don’t you?
Basic Grammar › View
____ is the Olympic Stadium? It´s in Montreal.
A. When
B. Where
C. Which
D. Who
Grammar › ViewI used __________________ basketball during my college years.
A. playing
B. to play
Loose vs. Lose › View
Your shoelaces are …
- loose
- lose
