单选题 My little brother believes that an alien invasion is right around the corner.
【正确答案】 B
【答案解析】该句意为：我小弟弟认为外星人很快就会入侵地球。around the corner：马上发生；out of the question：不可能的；about to happen：马上发生；still in the air：仍悬而未决；already out of hand：已经失控。