问题
选择题
------Flight 302 to London_______ until 7:30 tomorrow morning.
-----No wonder I hear so many complaints from the passengers.
A．has been delayed
B．delay
C．delayed
D．will be delayed
答案
答案：A
：确定首句时态的关键信息在于----No wonder I hear so many complaints 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