Question

A new language can sound strange the first time you hear it, but you _____________ learn to listen to it before you speak.

( ) shouldn’t
( ) must
( ) mustn’t
( ) may
( ) should

Answer 1

Should

Step-by-step explanation:

You should learn to listen to it before you speak.

Hope this helps!

Answer 2

should

Step-by-step explanation:

Shouldn't and musn't is not appropiate to the statement

Must makes it seem like you HAVE to do it, like in a forceful tone

Should implies that you should consider listening to it in a more softer tone