动词时态完型填空:What __(happen) here There is blood on the floor.
问题描述:
动词时态完型填空:What __(happen) here There is blood on the floor.
答
happened为什么是一般过去式?因为后面说地上有血,说明动作已经发生了,所以用一般过去时。地上有血,说明过去的动作对现在还有影响,为什么用一般过去式?因为动作发生了,用一般过去时。用has happened 也行。