[ Grammar & Vocabulary ]
I know. She’s apologized ___ you.
A. for not to invite
B. for not invite
C. for not inviting

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Grammar › ViewIf I ________ more free time, I would join the gym.
A. had
B. have
C. was having
Prepositions › View
Professor Steiner made a remarkable contribution ________ our university during his time with us.
A. in
B. with
C. to
Vocabulary and Grammar › Viewto consume food fast
A. get active
B. improve your mood
C. eat too quickly
Grammar › View
Mark Zuckerberg and his classmates ________ Facebook while he ________ Harvard University.
A. invented / attended
B. were inventing / attended
C. invented / was attending
D. were inventing / was attending