_________ we don't stop climate change, many animals and plants in the world will be gone.

1. _________ we don't stop climate change, many animals and plants in the world will be gone.

A. Although B. While C. If D. Until

【考点】

引导条件状语从句的连词; 条件状语从句;

【答案】

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单选题容易

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—That's great, ________ you can afford the time.

A. provided that B. in case C. even if D. so that

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—Well, it doesn't keep me awake in the night, I see no harm in it.

A. when B. as long as C. as though D. while

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3. _____ I make a promise to help others, I will manage to complete it.

A. Although B. Once C. Unless D. Before

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