Bộ 25 đề thi thử THPT Quốc gia môn Tiếng anh có đáp án năm 2022 (Đề 15)

The plumber couldn't remember where he'd left the box ____________ he kept his tools.

5/50

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

The plumber couldn't remember where he'd left the box ____________ he kept his tools.

for whom

in what

in which

of which

Giải thích

Đáp án C

Đại từ quan hệ: in which = where