[ Future Perfect Tense ]
Your best friend … help by the time you … her to take part in your wedding.
- will have offered, ask
- ask, will have offered

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Tenses › ViewIs this sentence written correctly?
Neither the teacher nor the principal know who let the crows into the school gymnasium.
A. Yes
B. No
Past Continuous › View
What ________ when you saw him?
A. did Tony wear
B. was Tony wearing
C. wore Tony
D. Tony wear