Question

【题目】We should make sure not to talk with our mouths full ___________.
A.in time
B.in no time
C.at all times
D.on time

Answer 1

【答案】C
【解析】考查介词短语辨析。句意：我们应当始终确保嘴里满是食物时不要说话。in time“及时”；in no time“立刻”；at all times“始终；任何时候”；on time“按时”。故选C。