(B)21.Becky is ________ American girl.She is studying in China now.
A.a B.an C.the D/
(B)22.—Do you want to join us ________ dinner?
—Yes,I'd love to.
A.with B.for C.to D.from
(B)23.She is sixty years old,but she still looks very ________.
A.old B.young C.fat D.new
(A)24.________ skirt in this shop is very beautiful.I like them all.
A.Any B.Some C.Many D.Much