شرکت در آزمون آنلاین
زبان انگلیسی 2
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زبان انگلیسی 2
| آزمون شماره 6139
Stress can cause a variety of physical .................... ranging from headaches to stomach ulcers.
When a person learns … experience that a certain behavior has a pleasant outcome, that behavior may be done again.
Have you ever …….. these old pictures ?
