Question

many worls of the artists are ? in the theater? A at show B on show C at display D on display

答案是B，请讲解四个答案的区别，谢谢。

Answer 1

on
show
on
display
都有“在展出/展览”
的意思，都可以作表语，后者还可以做主语。
On
display
are
earrings,
necklaces
and
bracelets
made
from
jade,
amber
and
amethyst.
展出的有用玉石、琥珀和紫水晶做的耳环、项链和手镯。
我认为这题里B
和D都可选为正确答案。