Xi’an was the last city ______ he visited when he came to China.
She showed the visitors around the museum, the construction______had taken more than three years.
She has already tried her best. Please don't be too______about her job.
On receiving a phone call from his wife______she had a fall, Mr. Gordon immediately rushed home from his office.
What's the______, in your opinion, of helping him if he doesn't make an effort to help himself?
Please call my secretary to arrange a meeting this afternoon, or______it is convenient to you.