[ 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:
Passive and Active SentencesOffering HelpPassive Voice and Relative ClausesSubject and Verb AgreementTransitional Phrases and ConjunctionsLinking Words and ConjunctionPresent Simple for Future ArrangementThird ConditionalsPast Simple TensesPoetryOther quiz:
Tenses › ViewPlеasе stay in your sеats _____.
A. while the bell was ringing
B. when the bell will ring
C. until the bell rings
D. once the bell had rung
Grammar › View
What do you call someone _____ writes computer programs?
A. which
B. where
C. that
Reflexive Pronouns › ViewYou can open your gifts by __________.
A. yourself
B. youself
C. himself
D. myself
Vocabulary › View
noun- a planned event or show; a playbill printed about an event or show. verb- to enter a systematic code
A. anagram
B. diagram
C. telegram
D. program
