Trắc nghiệm tổng hợp Tiếng anh có đáp án 2023 (Phần 9)

"We have a family of teachers upstairs and lawyers below, but our contact comes via letters (8)_____

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"We have a family of teachers upstairs and lawyers below, but our contact comes via letters (8)_____ to the communal facilities or complaints that we've not put out our bin bags properly," said Mayer.

concerning

regarding

applying

relating

Giải thích

relate to: liên quan đến = in/ with regard toChọn D