سؤال ۹، زبان انگلیسی ۳، دی ۱۳۹۷

The little boy ...... the box, can’t he? (to open)

If I were you, I ...... the old house. (to sell)

The bill must ...... before leaving the restaurant. (to pay)

My mother was very angry with my sister because she ...... the dishes. (not to wash)