Bộ 20 đề ôn thi vào Chuyên Anh năm 2023 cực hay có lời giải (Đề 21)

The idea was first (2) _______ by a French physiologist, Israel Waynbaum, in 1906.

65/88

The idea was first (2) _______ by a French physiologist, Israel Waynbaum, in 1906.

put down

put by

put forward

Giải thích

D. put forward