单项选择题
Whenever he appeared on the stage，the famous actor was greeted with a （）of applause from the audience.
A.pieceB.collectionC.numberD.burst
单项选择题 The speaker tried to （）his previous remarks to eliminate misunderstanding.
单项选择题 The lawyer （）a contract for the sale of the house.
单项选择题 It is （）to take plenty of water when traveling in the desert.
