is My ruler?—It‘s in the pencil box选一选,

问题描述:

is My ruler?—It‘s in the pencil box选一选,
is My ruler?—It‘s in the pencil box选一选,A ,When B,Where C ,Why

B,我的尺子在哪?,在文具盒里,由题意可知,选B,A,When在什么时候C为什么,故,选B