[ 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

Random Topics:
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:
Passive Voice › View“All arrangements are made”
Will ‘are’ change if we use this sentence in different tenses?
A. No
B. Yes
Grammar › View
Irene was late for work because of the …….. traffic.
A. bumpy
B. noisy
C. cosy
D. heavy
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
