By the age of 30, the professor ......... his first research about plant diseases.
سؤال وزاري مع الحل
By the age of 30, the professor ......... his first research about plant diseases.
- اللغة الإنجليزية
- وزاري 2026
- سؤال ٢٠
- 4A Grammar: Continuous and perfect tenses
الإجابة الصحيحة
جرّب السؤال بنفسك
سؤال واحد مع الإجابة
السؤال ٢٠
A
has been completed
B
had completed
C
was completed
D
had been completed
أسئلة أخرى من نفس الورقة
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