英语测试报……I o___ bought two pens in the store.
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英语测试报……Io___boughttwopensinthestore.英语测试报……Io___boughttwopensinthestore.英语测试报……Io___boughttwopensint
英语测试报……I o___ bought two pens in the store.
英语测试报……
I o___ bought two pens in the store.
英语测试报……I o___ bought two pens in the store.
I once bought two pens in the store.我曾经在商店买了两支笔.刚才那个人的回答是错的.
I often bought two pens in the store.
应该是only吧，想一下或许会觉得“我只在商店买了两支笔”更合理吧。