to sell

(a)  

materials, data

(a)  

catalogue

(a)  

timetable

(a)  

clothes

(a)  

software

(a)  

economy

(a)  

dentist

(a)  

single, unmarried

(a)  

products

(a)  

senior high school

(a)  

municipal office, city hall

(a)  

to make, to produce

(a)  

to get to know

(a)