未知题型
Having decided to rent a flat, we __________ 选择
A本句前边说“已经决定租房，我们联系房屋中介商……”这里需要填“开始”的意思。从动词后的4个介词来说，只有a......
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未知题型 You have nothing to __________怎选择
未知题型 The conference _________ a full week by the time it ends.A) must have lasted ) will have lasted C) would last D) has lasted
未知题型 Convenience foods which are already 选择
