题目

一Could you tell me what happed last night ? 一I can't go into detail now because it _______ take too long. A. would              B. should          C. might           D. could 答案：A 解析: 根据答话人说：我现在不能细讲，因为可能要花很长时间。由此可知这里考查情态动词表推测。would此处不表时态，表示可能性弱于will的推测。should表示理应；might, could表示较小的可能性，均不符合题意。15．口算4.7+2.3=4.2×2=6.05-2.5=1.2×0.8=1.4×0.5=0.75×100=0.02×0.5=3.6÷0.3=56÷100=0.75÷0.25=0.125×8=0.56÷28=10÷20=302=3.08÷0.01=0.51÷17=1÷4=0.25×3.97×4=0.7×0.7÷0.7×0.7=9÷0.25÷4=