问题描述：
3道英语句子填空
1、i c___ across an old friend in the library yesterday.
2、i’d like to join the singing pe___ in english club.
3、when you want to konw the price of an item ,you ask:"how much does it c___.
1、i c___ across an old friend in the library yesterday.
2、i’d like to join the singing pe___ in english club.
3、when you want to konw the price of an item ,you ask:"how much does it c___.
问题解答：
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