Quantities of water ________for cooling
问题:
Quantities of water ________for cooling in the only one of the factories that ________steel.
A.has been needed;produces
B.have been needed;produce
C.is needed;produce
D.are needed;produces
Quantities of water ________for cooling in the only one of the factories that ________steel.
A.has been needed;produces
B.have been needed;produce
C.is needed;produce
D.are needed;produces