题目内容
You can take as many books as you like here for they are free of ________.
| A.fare | B.charge | C.money | D.pay |
B
fare“运费、车费”; pay“工资、报酬”;charge“费用、收费”,free of charge意为“免费”。故选B。
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| A.fare | B.charge | C.money | D.pay |