This field of scientific research remains________.
To tell the truth, I would rather that I ____ the pain instead of you. You don’t know how worried I was.
By the time you get to Beijing tomorrow, I ______ for Shanghai.
Europeans made ______ clear that they did not want to take the Romans as neighbors.
The 11.11 Shopping Festival held by Taobao attracted thousands of online shoppers, _____ a record of nearly 20 billion yuan within 24 hours.
“We_____ the train had we left earlier,” the wife complained to the husband.