Whenever I see the birds, I’ll _______ flying in the sky.

Whenever I see the birds, I’ll _______ flying in the sky.
A、think up
B、dream of
C、work on
D、pick up
【正确答案】：B
【题目解析】：think up想出，发明，虚构；dream of梦想；work on从事；pick up捡起，获得，收拾句意：每当我看到鸟，我就梦想着在天空中飞翔。