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ber ____________(take) the medicine twice a day . 11. I didn’t finish _____________(write) the letter at that time.es to takecallwriting 。? a. cost: 費用( n) ? the cost of…: … 的費用? b. cost: 花費( v) ,主語通常為物? . 這輛自行車花費 800元。? a. take the underground to…? = ? take the bus to…? = ? ride to…? =? b. go back to…: 回到 …Go to…by undergroundGo to…by busGo to…by bike? 3. The cost is about ¥ 50 per student.? 費用是每位同學 50元。5. 昨天他想邀請我去參加他們的北京之行。3. 每個學生的費用大約是 40元。Unit 3 A day out Main TaskHave a try? 1. _________(final), we arrived at the park.? 2. He bees the leader(領(lǐng)導 ) because he ? has lots of _________ (support).? 3. The book is _______ (free) for you.? 4. Helping others is __________(meaning).? 5. 旅行的費用是多少?? What is the _______ of the trip?? 6. 來為我們的隊伍歡呼吧!? e and _______ _______ our team.Finallysupportersfreemeaningfulcostcheer forFree talk? What places of interest in Beijing do you know?? If you go to Beijing, where will you vi