Vocabulary&Structure Section A 16、The new dictionary__________him 15 dollars.A.paidB.tookC.spentD.cost17、 Hisgood sense of humor made a deep impression __________us.A.inB.onC.forD.to18、He had so little education __________ he was unfit for this job.A.butB.whatC.asD.that19、 __________ had enough time, they would have visited the Great Wall.A.Had theyB.Have theyC.Would they haveD.If they20、 Noise is unpleasant, __________ when you are absorbed in reading.A.essentiallyB.e