300 Câu trắc nghiệm tiếng Anh tìm lỗi sai có đáp án - Phần 5

Although most species of small birds gather in groups at feeders provided by bird-watchers, the bright red cardinals usually appears alone or with its mate.

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Although most species of small birds gather in groups at feeders provided by bird-watchers, the bright red cardinals usually appears alone or with its mate.

at

cardinals

or

its

Giải thích

Chọn đáp án Dits => theirs
Giải thích: chủ ngữ là “the bright red cardinals” (đếm được số nhiều)