------Flight 302 to London until 7:30 tomorrow morning.
-----No wonder I hear so many plaints from the passengers.
A. has been delayed
B. delay
C. delayed
D. will be delayed
网友回答
(答案→)A. has been delayed
B. delay
C. delayed
D. will be delayed
解析：：确定首句时态的关键信息在于----No wonder I hear so many plaints from the passengers.既然听到了乘客的抱怨，说明航班已经被推迟。也就是说，推迟这一动作发生在过去且已对现在产生影响，所以用现在完成时。
【标签】动词时态