شرکت در آزمون آنلاین
زبان انگلیسی 2
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زبان انگلیسی 2
| آزمون شماره 5830
When a person learns … experience that a certain behavior has a pleasant outcome, that behavior may be done again.
It is amazing to know that they can speak more than five languages … .
His serious back injury may ... him from playing in tomorrow’s game.
