[ Grammar ]
Most studies ____ that acupuncture does not reduce nausea and vomiting caused by radiation therapy.
A. are shown
B. were shown
C. have shown
D. have been shown

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Coordinating ConjunctionGrammar and Passive VoiceNoun and Modal VerbsSentences vs Run-OnsGrammar - Present Perfect with already, just, yetVocabulary : Coming & GoingPast and Past ContinuousPronouns of QuantitySimple Future - WillLet & Be allowed toOther quiz:
Grammar › ViewUse the correct pronoun I or me to correctly complete the sentence below.
My grandmother took _____ to the store with her.
_
A. I
B. me
Grammar › View
How ___ do you travel?
A. never
B. often
C. sometimes
Modal Auxiliaries and Similar Expressions › ViewYou ___ back up your data. The hard drive might fail soon.
A. may
B. had better
C. might
D. could
Grammar › View
Find the question
A. What is the tortoise doing?
B. Where is the bathroom
C. What is your dog’s name
D. Can I go to the baseball game