问题补充:
Can’t you see the sign there “For only!”
A. says; staff
B. written; staffs
C. speaking; staffs
D. reading; staff
答案:
A. says; staff
B. written; staffs
C. speaking; staffs
(答案→)D. reading; staff
解析:句意“你难道没看到那里的标志‘员工专用’吗?”sign和read之间是主谓关系,应该用现在分词表示伴随状况;staff“员工,职员”,是集体名词。故选D。