2014
高考英语单项选择抓分精品练习题(14)及答案 第******套从a、b、c和d四个选项中,选出可以填入空白处的最佳选项。 1. --may i open the window to let in some fresh air? --________. a. come on! b. take care! c. go ahead! d. hold on! 2. there is no doubt ________ america is a developed country. a. whether b. if c. that