They have been working on this project for one month. It seems they need one _______ month to fini...

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had been working; are still working had worked; were still working have been working; have worked have worked; are still working

have been working; have have worked; had am working; will have had been working; had had

had been working; are still working had worked; were still working have been working; have worked have worked; are still working

work; had been working worked; was working worked; have worked are working; have been working

had been working; are still working had worked; were still working have been working; have worked have worked; are still working

had been working; had had have been working; had have been working; have am working; will have

have worked had worked have been working had been working

had been working; are still working had worked; were still working have been working; have worked have worked; are still working

have been working; have have worked; had am working; will have had been working; had had

work; had been working worked; was working are working; have been working worked; have worked

had been working; are still working had worked; were still working have been working; have worked have worked; are still working

have been working; have have worked; had am working; will have had been working; had had

work; had been working are working; have been working worked; was working worked; have worked

work are working have been working have been worked

had been working; are still working had worked; were still working have been working; have worked have worked; are still working

had been working; are still working had worked; were still working have been working; have worked have worked; are still working