An attached image is a part of TOEIC test.
In it, I can't figure out that phrase at the bottom:
"You did" in "so sign up for on of Linda's class -- you'll be glad you did!"
What does "you did" in that sentence mean?
Could you tell me, please?
Takehisa Tanaka So sign up for on e of Linda's class es -- you'll be glad you did! = So sign up for one of Linda's classes -- you'll be glad that you signed up for one of Linda's classes. This grammatical pattern is used to encourage people to react favorably to an imperative by suggesting that they will benefit from doing so.
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Takehisa TanakaSo sign up for one of Linda's classes -- you'll be glad you did!
= So sign up for one of Linda's classes -- you'll be glad that you signed up for one of Linda's classes.
This grammatical pattern is used to encourage people to react favorably to an