Even if parents no longer live together, they each continue to be _____ for their children in the eye of the law.
Even if parents no longer live together, they each continue to be \_\_\_\__ for their children in the eye of the law.
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The harder he worked, the most troubles he had in his early days as a scientist.
The harder he worked, the most troubles he had in his early days as a scientist.
Only when we hurried to the airport _____ the flight was cancelled.
Only when we hurried to the airport \_\_\_\__ the flight was cancelled.
有这样一道数学题:“90％×90％x90％x90％×90％=？”其答案是约59％。90分看似一个非常不错的成绩，然而，在一项环环相扣的连续不断的工作中，如果每个环节都打点折扣，最终得出的成绩就是不及格。这里蕴含的辩证法道理是（ ）。
有这样一道数学题:“90％×90％x90％x90％×90％=？”其答案是约59％。90分看似一个非常不错的成绩，然而，在一项环环相扣的连续不断的工作中，如果每个环节都打点折扣，最终得出的成绩就是不及格。这里蕴含的辩证法道理是（ ）。
Students are expected to pay the loan back _____ they are earning enough.
Students are expected to pay the loan back \_\_\_\__ they are earning enough.
Dr. Bell gave some lectures, visited the Great Wall and going shopping downtown in Beijing.
Dr. Bell gave some lectures, visited the Great Wall and going shopping downtown in Beijing.
The manager required that all the employees _____ at the office before 9:00 in the morning.
The manager required that all the employees \_\_\_\__ at the office before 9:00 in the morning.