(1)Sue introduced ____ to the hostess.
A.her B.herself C.hers D.she
(2)Now i ____ what you're talking about.
A.understand B.understood C.am understanding
(3)relax=A.rested B.slept C.lay down
(4)We visited a museum of ____ history(nature)
(5)The room was ____ warm.(comfortable)
