【題目】If there no buying and selling of animals, there no killing in nature.
A.is; will be
B.will be; will be
C.is; is

【答案】A
【解析】句意:如果沒有動物的買賣,就不會有自然界的殺害。if引導的條件狀語從句,句中時態(tài)遵循“主將從現(xiàn)”的原則。另外. 主從句中分別有there be句型, there be句型中be的形式依“就近原則”,buying and selling意為“買賣行為”,是一件事,be動詞用is,故選A。

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