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【題目】It has been forty years ________ the reform and opening-up. Great changes have taken place in our country.

【題目】Italy is ________ European country and India is ________ Asian country.

【題目】Some people won’t realize the importance of their friendship ________ they lose it.

【題目】There was a heavy traffic. ________, I was late for the meeting.

【題目】Thanks for ________ the room for me. It's clean now.

【題目】There ________ the bell. Class begins.

【題目】—I read for at least two hours every day.

【題目】The cost of living continues ________.

【題目】—We'll have a basketball match against Class 1. I'm sure we'll win!

【題目】—Do you know________ Lily can lose so much weight in such a short time?