21.In order to find _______ better job, he decided to study _______ second foreign language.
A.the; a B.a; a C.the; the D.a; the
22.There is a ______ cup on the table.
A.nice new big plastic B.new plastic big nice
C.nice big new plastic D.new nice plastic big
23.This is the second time Nie Haisheng ______ to be the astronaut who took the glorious task.
A.has been chosen B.had been chosen C.was chosen D.chose