Mark the letter A, B, C, or D on your answer sheet to indicate the underlined part that needs correction in each of the following questions.

Câu hỏi

There is an unexpected power outage at our school two weeks ago

A. is

B. unexpected

C. at

D. weeks

Đáp án
A. is

Câu hỏi thuộc Bài tập:

ĐỀ SỐ 4 - VŨ MAI PHƯƠNG