—Steve _______ come back because the window is open.
—Yes.but he _______left it open last night.
A.must have;might have B.might have;can’t have
C.can have;should have D.might;must have
—Steve _______ come back because the window is open.
—Yes.but he _______left it open last night.
A.must have;might have B.might have;can’t have
C.can have;should have D.might;must have
A