Secondary rainbows are unusual because the light is reflected twice within the raindrop before it (431)________ a rainbow, so the colors are in reverse order and not as bright as primary rain

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Secondary rainbows are unusual because the light is reflected twice within the raindrop before it (431)________ a rainbow, so the colors are in reverse order and not as bright as primary rainbows.

forms

grows

develops

shapes

Giải thích

Đáp án A

Kiến thức: Từ vựng, đọc hiểu

Giải thích:

form (v): hình thành, tạo thành grow (v): lớn lên, phát triển

develop (v): phát triển shape (n): hình dáng