Mostofthetimeweareunawareofwhat
來源:國語幫 2.27W
問題詳情:
Most of the time we are unaware of what ______ in our bodies; usually it is only when we get sick or feel pain that we notice.
A. happen B. happens C. is happening D. has happened
【回答】
C
知識點:現在進行時及其被動式
題型:選擇題