800 câu trắc nghiệm Điền từ Tiếng Anh có đáp án - Phần 8

After studying rainbows in (2)________, Sir Isaac Newton was able to explain how they are formed.

17/35

After studying rainbows in (2)________, Sir Isaac Newton was able to explain how they are formed.

depth

width

breadth

length

Giải thích

A là đáp án đúng