— How long have you been here?
—About half an hour, Jack ______me here.
A:had driven
B:has driven
C:drives
D:drove
如图,在平行四边形ABCD中,对角线AC与BD相交于点O,BD⊥AD,AD=6,AB=10,则△AOB的面积为 ____
不属于现代生物进化理论的是