(2023) Đề thi thử Tiếng anh THPT theo đề minh họa của Bộ giáo dục có đáp án (Đề 89)

Last night, when I was watching films on my phone, there has been a power outage for 3 hours. A. was watching B. on C. has been D. a

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Last night, when I was watching films on my phone, there has been a power outage for 3 hours.

was watching

on

has been

a

Giải thích

Chọn C