课时作业(八) [必修2 module 2 no drugs] (限时:35分钟) ⅰ.单项填空 1.the computer system ________ suddenly while he was searching information on the internet. a.broke down b.broke out c.broke up d.broke in 2.—how many subjects are you __________ this year? —six, including english literature. a. covering b. following c. making d. taking 3.with father's day around the corner, i have taken some money out of the bank________ presents for my dad. a. buy b. to buy c. buying d. to have bought 4.we should do what we can ________ crime, because it i