[ Grammar ]
I have studied ____________ six hours. Now I am going to have lunch.
A. during
B. for
C. since
D. within

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Grammar : Must (Necessity)PronounPerfect TensePast Perfect & Past SimpleModals for DeductionVerb & GrammarGerund and To InfinitiveModals in the Past - Speculation and DeductionRequest with Modal VerbsDirect Object and Indirect ObjectOther quiz:
Tenses and Comparisons › ViewHey Rina, can you help Joko figure out the comparative form of the adjective ‘happy’? Let’s see if you can find the right answer!
A. happier
B. happiest
C. happyest
D. more happy
Grammar for TOEFL › View
Rarely _____ located near city lights or at lower elevations.
A. observatories are
B. are
C. in the observatories
D. are observatories
Grammar › View____ than drive, she decided to walk
A. Better
B. Either
C. Rather
D. Other
Sentences vs Run-Ons › View
Which of the following is a complete sentence?
A. Because it was raining.
B. The cat chased the mouse.
C. When the lights went out.
D. If you finish early.
