[ Tenses ]
For decades, researchers _____ to wrest predictions from string theory, the leading candidate for a more fundamental understanding of the universe.
A. tried
B. were trying
C. have tried
D. try
E. had tried
Random Topics:
Tenses & AffixesAntonymsDeterminers & QuantifiersOpinion / Agreement-ing form and the to-infinitiveAdjective / Noun + to InfinitiveAdjective, Adverb, and Noun FormsPast or Present Verb TenseModals AuxiliaryPresent Continuous for FutureOther quiz:
Grammar › ViewThis soap opera might be a little boring but it helps me …………………………………………….. .
A. take my mind off things.
B. take my head off peruvian Tv..
C. take body off things.
D. take my mind tto somewhere else.
Modal Verbs › View
Complete the sentence: You ________ attend the meeting tomorrow.
A. must
B. can
C. should
D. might
Tenses › ViewHe __________ the football match every weekend.
A. watch
B. watches
C. watched
D. watching
Run-On Sentences › View
Run-On Sentence or Correct: Meet me at the courts we can play for an hour before dark.
A. Run-On
B. Correct