書名：新多益閱讀大破解
頁數：p.169
題目：
In order to ______ live video in a window, individual video images and
video clips can be digitized and stored to disk.
(A)display
(B)displays
(C)displaying
(D)displayed
答案是C，請問各位多益滿分的大大這裡為什麼不能用A呢？他的解析看不太懂