Bộ 10 đề ôn thi học sinh giỏi Tiếng anh lớp 9 có lời giải chi tiết (Đề 4)
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In the future the Hawaii Rare Plant Restoration Program aims (64) _______ collecting genetic material from the remaining plants in the wild for storage as a safety net for the future.

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In the future the Hawaii Rare Plant Restoration Program aims (64) _______ collecting genetic material from the remaining plants in the wild for storage as a safety net for the future.

for

with

on

at

Giải thích

Chọn D