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---Howmucharethesebooks?      ---Youdon’thaveto

練習題1.15W

問題詳情:

---Howmucharethesebooks?      ---Youdon’thaveto

---How much are these books?

       ---You don’t have to ___ . They are free.

       A. pay them              B. pay for them   C. cost them  D. spend them

【回答】

B

知識點:動詞和動詞短語

題型:選擇題