An electrical fault could have caused the fire.

A. An electrical fault could have been caused by the fire.

B. An electrical fault could have caused the fire

C. The fire could have been caused by a electrical fault.

D. The fire could have caused an electrical fault.

Đáp án
C. The fire could have been caused by a electrical fault.

Câu hỏi thuộc Bài tập:

60 PASSVE VOICE EX2 MR. BA