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Please hand on the papers to those ________ at the back of the classroom.

Now that we've discussed our problem，are people happy with the decisions ________？

The children all turned ________ the famous actress as she entered the classroom.

The government plans to bring in new laws ________ parents to take more responsibility for the education of their children.

________ the right kind of training，these teenage soccer players may one day grow the international stars.

Nowadays people sometimes separate their waste to make it easier for it ________.

At the age of 29，Dave was a worker，________ in a small apartment near Boston and ________ what to do about his future.

In April,2009，President Hu inspected the warships in Qingdao，________ the 60th anniversary of the founding of the PLA Navy.

________ not to miss the flight at 15：20，the manager set out for the airport in a hurry.　　　　　　　　　　　　　　　　　　　

There are some tall trees in our campus, some  ________    more than forty meters.