课时作业(十七) 必修4 unit 2 working the land ⅰ.单项填空 1．(2014·哈尔滨模考)—shall i help you with the math problem? —________. a．if you wish b．with pleasure c．you’re welcome d．that’s right 2．(2013·皖南八校三次联考)launched in march 2010，chinaface has been a daily news feature________on a chinese individual. a．being focused b．focusing c．to be focused d．to focus
