Kỳ thi thử thpt quốc gia lần 1 năm 2019 môn Tiếng Anh cực hay có lời giải(Đề 21)

They stayed for hours, ______ my mother was very annoyed about.

9/50

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.

They stayed for hours, ______ my mother was very annoyed about.

that

this

which

whom

Giải thích

Đáp án C

Which: bổ sung cho ý đứng trước