Food supplies in the flood-stricken area
题型：选择题
问题：
Food supplies in the flood-stricken area _______. We must act immediately before there’s none left.
A．have run out
B．are running out
C．have been run out
D．are being run out
Food supplies in the flood-stricken area _______. We must act immediately before there’s none left.
A．have run out
B．are running out
C．have been run out
D．are being run out