—Did you sec anyone coming into the buil
题型：选择题
问题：
—Did you sec anyone coming into the building?
—No, I didn’t
—______?
—There is no doubt about it.
A．OK
B．Sure
C．Really
D．Is that so
—Did you sec anyone coming into the building?
—No, I didn’t
—______?
—There is no doubt about it.
A．OK
B．Sure
C．Really
D．Is that so