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31. What we’re trying to do is to have companies (manage)and use plastic much more wisely.

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32. You can save energy by sometimes taking the bus, riding a bike, or simply (walk).

33. We have got a notice from the electronic toy company that all the goods we ordered will (deliver)in three days.

34. We will update you on the outcome of any investigation and contact you for (addition)information if necessary.

35. After several years of trials, the new ingredients will (significant)improve food quality.