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e B ( Grammar Focus4c) ( )5. Which is TRUE according to the passage? A. Bicycling is good exercise for people. B. Driving cars is healthier than bicycling. C. Bicycling pollutes your neighborhood. D. Common bikes are weled by all airlines. A ( Grammar Focus4c) ( Grammar Focus4c) ● 難點釋疑 ① at least 意為“至少,最少”。 如: We should brush our teeth at least twice a day. 我們每天應該至少刷兩次牙。 ( Grammar Focus4c) ② without doing sth. 意為 “沒有做某事”。 如: He sat there for a long time without doing anything. 他長時間坐在那兒,什么也沒做。 ③ can be done意為 “能夠被做”,是含情態(tài)動詞的被動語態(tài)結構。 ( Grammar Focus4c) 如: He wonders what can be done to stop his friend. 他想知道能采取什么行動去阻止他的朋友。 ④ be sure to do意為 “一定,勢必”。 如: He told me I was sure to get a warm wele. 他告訴我,我準會受到熱烈的歡迎。 謝 謝 觀 看 !