单元检测(六)一、单项填空(共15小题;每小题1分,满分15分)请从A、B、C、D四个选项中,选出可以填入空白处的最佳选项。1.Tom pretended ________ it,but in fact,he knew it very well.21教育名师原创作品A.not listen toB.not to hear aboutC.not to have heard aboutD.not to be listening to2.Lisa,I guess we’d better fix a navigational aid(导航仪) to the car________we can find our way easily.A.which B.thatC.from which