We have no meanings for "decide which one" in our records yet.
1 Can you please help me decide which one do you like better?
2 And it certainly wasn't hard to decide which one to go to.
3 You have to decide which one you want more, him or me.
4 But we leave it to yourselves to decide which one shall go.
5 He is considering two girls and cannot decide which one to select.
6 We'll leave it to you to decide which one you prefer.
7 He told the prince to decide which one he wanted for a wife.
8 How hard it is, sometimes, to decide which one you will take first!
9 Hang them both, and let God decide which one shall go to hell.
10 The problem is to decide which one to tell first.
11 You can decide which one of us holds which view.
12 I couldn't decide which one to wear and decided to iron both of them.
13 If you can't decide which one to get, fear not.
14 To the editor, both were alien-buthe couldn't decide which one was more dangerous.
15 Presumably you have come to decide which one it is.
16 You've just got to decide which one to throw overboard.
Other examples for "decide which one"
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This collocation consists of: Decide which one through the time
Decide which one across language varieties