The/ biggest problem for humans live other planets be lack atmosphere and water

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Choose the letter A, B, C or D to complete the sentences with given words

The/ biggest problem/ for/ humans/ live/ other planets/ be/ lack/ atmosphere and water.

The biggest problem for humans to live in other planets is lack of atmosphere and water.

The biggest problem for humans living on other planets is lack of atmosphere and water.

The biggest problem for humans to living in other planets is lack of atmosphere and water.

The biggest problem for humans to live on other planets is lack of atmosphere and water.

Giải thích

Đáp án D

Giải thích: live on other planet: sống trên hành tinh khác

Dịch: Vấn đề lớn nhất cho con người sống trên hành tinh khác là thiếu không khí và nước