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【題目】We will hold a meeting to sum up our experience ____ we finish our task.

【題目】China will remain a developing country, as there is still a long way to go ________ we’ll be able to achieve modernization.

【題目】Jumping out of ______ airplane at ten thousand feet is quite ______ exciting experience.

【題目】Some China’s factories are moving to poorer parts of China， labor is cheaper.

【題目】The waste water has been made clean before it goes into the river ________ the new rule was made.

【題目】____these experiments are interesting, it’s important to remember that they may not always tell us much.

【題目】Under good treatment, she is beginning to ________ and soon come back to work.

【題目】The more you study maths, ________.

【題目】The chairman asked the members to ________ their votes for or against the proposal.

【題目】—I am sorry. I can’t stay with you, Father.