问题
选择题
In order to be ________ for Christmas, all these gifts must be mailed immediately.
A．at one time
B．in time
C．at a time
D．in no time
答案
答案：B
本题考查time短语。A. at one time曾经； B. in time及时； C. at a time每次几个； D. in no time立刻。句意：为了在圣诞节及时收到，所有这些礼物必须立刻寄出去。