用before还是after?The roof fell ______ he had time to rush into the house to save his son.
问题描述：
用before还是after?
The roof fell ______ he had time to rush into the house to save his son.
答
用before
before是指在…之前
after是指在…之后
答
before
天花板在他有时间冲进房子救他儿子之前掉了下来.
注意had time 如果放after 就不符合逻辑了.