You can't make much progress in your physics unless you study hard(保持原句意思)you_____ make much progress in your physics_____you study hard.

You can't make much progress in your physics unless you study hard(保持原句意思)you_____ make much progress in your physics_____you study hard.
You can't make much progress in your physics unless you study hard(保持原句意思)
you_____ make much progress in your physics_____you study hard.

You can't make much progress in your physics unless you study hard(保持原句意思)you_____ make much progress in your physics_____you study hard.
you can make much progress in your physics if you study hard.

can...if

shouldn't expect

You can't make much progress in your physics unless you study hard(保持原句意思)
you can make much progress in your physics if you study hard.
答案放心用，我是从事英语的，不明再问。

you__could___ make much progress in your physics___if__you study hard.