I remembered ______ (lock) the door before I left the office, but forgot to turn off the lights.
此题答案是to lock,请问可以填动名词locking吗?众所周知:remember doing sth表示“记住做过某事”,remember to do sth表示“记住要做某事”...
Among children with parents who ranked high on the socioeconomic scale,
participation in high school sports has increased.这里的rank high,为什么rank 后加的是形容词?