البكتيريا (2)
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البكتيريا (1)
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الاختلافات المناعية
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المناعه المكتسبة
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الحث الذاتي
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الحث الذاتي
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الدرس الاول
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التكامل بالتعويض
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preposition + noun-phrase
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pharasal verbs
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الجزء الثامن
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الجزء السابع
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reported advice
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الجزء الخامس
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modal verbs
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as soon as
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present perfect continuous
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مراجعه قواعد الفصل الاول والفصل الثاني
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الدرس الخامس
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Causative structure
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