Choose the sentence that best combines each pair of sentences given. My father has learned about planting trees in the garden. This contributes to a healthier environment.

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Choose the sentence that best combines each pair of sentences given.

My father has learned about planting trees in the garden. This contributes to a healthier environment.

My father has learned about planting trees in the garden, that contributes to a healthier environment.

My father has learned about planting trees in the garden, in which contributes to a healthier environment.

My father has learned about planting trees in the garden, and which contributes to a healthier environment.

My father has learned about planting trees in the garden, which contributes to a healthier environment.

Giải thích

Đáp án đúng: D

Giải thích: Dùng “which” để bổ nghĩa cho cả mệnh đề “has learned about planting trees…”.

Dịch nghĩa: Bố tôi đã học cách trồng cây trong vườn, điều này góp phần tạo ra môi trường lành mạnh hơn.