1.The man on the beach is my brother.
A. lay B. lied
C. laying
D. lying
2.In the police station I saw the man from ________ room the thief had stolen the TV set.
A. whom B. which C. that D. whose
3.The conflict had developed into a stage ________ the two countries were gathering big troops on the border.
A. where B. which C. that
D. when
4.Joan hasn't been seen for four days and there is growing _____ for her safety.
A. power B. item C. concern D. series