If we don't hurry up everything by the time we get to the party.A. will be eatenB. is e

问题补充：

If we don hurry up, everything by the time we get to the party.

A. will be eaten

B. is eaten

C. has been eaten

D. will have been eaten

答案：

A. will be eaten

B. is eaten

C. has been eaten

(答案→)D. will have been eaten

解析：D 考察时态。句义：如果我们不快点，当我们到达宴会的时候，所有的东西可能都已经被吃完了。If引导条件状语从句，从句是一般现在时，故主句要使用将来时，且由by the time可知，应该使用完成时态。故D正确。