问题
选择题
You can borrow at most four books from Xinghua Library ___________.
A．at a time
B．from time to time
C．at times
D．in time
答案
答案：A
题目分析：句意：你可以一次从新华图书馆最多借四本书。at a time每次，from time to time不停地，at times有时，in time及时；at most最多，根据语境可知是每次能最多借四本书，故选A.