单元检测(四)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.—This is the model plane I made yesterday,Dad.—________!A.Thank you B.Just so-soC.My pleasure D.Good work2.He speaks Chinese fluently as if he ________ a Chinese.21教育名师原创作品A.were B.had been C.is D.has been3.—I’ll drop in on our retired English teacher on the way to th