课时作业(二十一) [模块7 unit 2 fit for life][zzstep.com] (限时：30分钟) ⅰ.单项填空 1．now we've got a foot in the door; we are hoping to ________ a big market in china. a．open up b．open out c．open into d．open by 2．some students, who are addicted ________ the computer games, do not go to school at all. a．to play b．playing c．to playing d．with playing 3．the president ________ the idea that the welfare system should be improved. a．applied to b．appealed to c．adjusted to d．subscribed to
