The teacher asked us (1)/ if we have (2)/ completed the assignment (3)/ before leaving the class. (4)
The error is in part 2. The correct phrase should be "if we had" instead of "if we have." The past perfect tense ("had completed") is needed here because it refers to an action that should have been completed before another past action ("leaving the class"). Therefore, the sentence should read: "The teacher asked us if we had completed the assignment before leaving the class."
Where is the Headquarter of Asian Development Bank?
...Under which article of Indian Constitution the Finance Commission is constitued?
Ustad Amjad Ali Khan is famous for playing which musical instrument?
Who founded the city of Amritsar?
The first phase of bank nationalization began in the year of
Prathama Bank was sponsored by SBI
Who had composed the Geeta Govinda or Gita Govinda?
The Capital of Sierra Leone is
Greenland Island is in which ocean?
Which of the Following Day is not observed in January?