[ Preposition of Time ]
My English class will start _________ fifteen minutes.
A. in
B. on
C. at
D. (nothing should be added)

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Grammar › ViewWhat can you see in present continious
A. at the moment
B. once a week
C. next week
D. in 1979
Modal Verbs › View
Sarah didn’t contact me. She _____ have got my message.
A. couldn’t
B. must
C. can
D. should
Grammar › ViewChoose the word that matches the picture.
A. brush
B. brushes
Tenses › View
I _____(help) her take care of her children tomorrow.
A. will help
B. had been helping
C. have helped
D. am helping
