【单选题】
We should always keep in mind that _____decisions often lead to bitter regrets.
【单选题】
People under stress have performed _____feats of strength, like lifting an automobile off an accident victim.
【单选题】
Operations which left patients _____and in need of long periods of discovery time now leave them feeling relaxed and comfortable.
【单选题】
Outside my office window there is a fire _____on the right.
【单选题】
The fox fell into the _____the hunter had set for it.
【单选题】
You should know better than _____your little sister at home by herself.
【单选题】
The reason that his property was confiscated by the country, it _____, was that he was involved in a lot of fraudulent activities during the war.
【单选题】
By the end of next month we _____this assignment.
【单选题】
Our teacher recommended that we _____as attentive as possible when we visit the museum.
【单选题】
_____native to North America, corn has now spread all over the world.