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Grammar › ViewWhen I got to the office, I ___ that I ___ to lock the front door.
A. had realized / forget
B. realized / had forgotten
C. realized / forget
D. had realized / had forgotten
Grammar for TOEFL › View
Only for a short period of time _____ run at top speed.
A. cheetahs
B. do cheetahs
C. that a cheetah can
D. can