Have a good look round the room to make sure you ______ everything.A.had packedB.pack C.have packedD.are packing
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C解析试题分析：句意：好好看一下房间确保把一切东西都放进了包里。这里看房间以前已经把东西放进包里，故用现在完成时；过去完成时必须有可以参照的过去的动作才行，故选C。考点：考查动词时态的用法。
点评：本题难度适中。动词时态也是高中阶段的重难点之一，需要考生能够理解句意进而对动词的时态做出正确的判断。即学即练：I heard that her husband ______ up his things and moved out.A. had packed B. pack C. have packed D. are packing解析：A。句意：我听说她丈夫已收拾了他的东西搬出去住了。