填空题

By the end of next month，we(find)______a good solution to the technical problem．

【参考答案】

will have found
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填空题
The manager was(entire)______unaware of the trouble with the heating system in thehotel until this week．
单项选择题
______ to find the proper job, he decided to give up job-hunting in this city.
A．Failed
B．Being failed
C．To fail
D．Having failed
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