问题

ou tell me what time the flight to Detroitleaves—I’m sorry, but it _______________.

A:has been canceled
B:had been canceled
C:has canceled
D:had canceled

正确答案是：

同类题型

Tony ____ for the company as an engineer for two decadesNow he teachesmechanics m Peking University

As a doctor，I that I will be kind to my patients，love them and do my best to save their lives. That is my promise.

children believe they can succeed, they will never become totally independent

Though ______ to see us, the professor gave us a warm welcome.

money, the man was very rich, but hewas not happy at all