20. It took them_________ to finish the work.
A. oneandahalfhours
B. oneandahalfhour
C. anhourandahalfhours
D. oneandhalfhour
(责任编辑:admin) |
20. It took them_________ to finish the work.
A. oneandahalfhours
B. oneandahalfhour
C. anhourandahalfhours
D. oneandhalfhour
(责任编辑:admin) |