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题型：单选题题类：常考题难易度：普通

过去完成进行时练习

To my great relief, my old camera _____ before I had it repaired by an expert two years ago.

A、had been working B、worked C、have been worked D、work

举一反三

McDonald's announced the Beijing-based corporate group __________ the franchise(特许经营) bid to run its China operations for the next 20 years on Monday.

The bus we {#blank#}1{#/blank#}(一直等待) was too crowded, so we decided to catch a later one.

He ______ research in the US for many years, but when he came back, he became a businessman.

They ______ the road by the end of last month.

He came back late because he _____ for her for two hours.

— Why did Lucy look so excited?

— Well, she finally got the bike she this afternoon.

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