[ 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
Select your answer:
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Gerund and Infinitive › ViewMy husband is considering ………………. the job.
A. changing
B. to change
Subjunctive › View
It’s time we all __________ now.
A. leave
B. to leave
C. left
D. have left