I couldn't have got to the meeting on time - _______ an earlier train .
| A．if I had not caught | B．unless I had caught | C．if I did not catch | D．unless I caught |
Dozens of people were waiting with a camera for ______ seemed like hours, hoping to catch a glimpse of the US First Lady, Michelle Obama.
| A．that | B．when | C．which | D．what |
— Can I make an appointment with Dr. Smith this afternoon?
— Sorry, I’m afraid he is not ______ because he has a patient to operate on.
| A．convenient | B．available |
| C．accessible | D．valid |
The disaster relief funds are already ______ so that people in the earthquake-stricken area can carry out reconstruction work without delay.
| A．in place | B．in demand |
| C．in order | D．in vain |
The Adulthood Ceremony was held in the school lecture hall ______ seats approximately 500 students.
| A．where | B．whose | C．which | D．when |
China’s e-commerce giant Alibaba had an amazing year as the Nov. 11 shopping carnival broke new records, the Double Twelve shopping day ______ with success.
| A．having followed | B．following |
| C．followed | D．to follow |