The ____ had invented the wheel in 5000 B.C.E. The ____ brothers had invented the first successful airplane . Dr. Alexander Fleming had discovered ____ in 1982 . ____ invented the light bulb . The first PC was introduced by ____ in 1981. The first commercial oil well drilled was in ____ .

Missing word ( Mega 1.3 U 3 ( Listen and Discuss )

بواسطة
تضمين

لوحة الصدارة

النمط البصري

الخيارات

تبديل القالب

استعادة الحفظ التلقائي: ؟