what's this?A.It's here B.It's the letter S C .its S D.It's a S 应该选哪一个

问题描述:

what's this?A.It's here B.It's the letter S C .its S D.It's a S 应该选哪一个

B
A是地点 对where的回答
C意思不对 他的S
D冠词写错了 应该是an S