精选优质文档-倾情为你奉上1. Theyspenttwoyears_ ( build)thisbridge.2. Anewcomputer_ (cost)alotofmoney.3. Ispenttwohours_thisMathsproblem.A. on B. in C. at D. for4. Ittookthemthreeyears_(build)thisroad.5. Ihavetopaythem20pounds_thisroomeachmonth. A. on B. for C. at D. in6. It is no use talking without _(do)7.Painting_(be)hishobby8. This is a very old song, so _ you