___putting it in the basket,he dropped it into the inside pocket of his overcoat

选B

instead of
adv.
代替, 而不是...

他没有把这个东西放到篮子里，而把它放到了外套的里袋里面。

b

B
INSTEAD OF 表示代替

instead of后面接名词/动名词（doing）.eg. we'll play football instead of basketball/playing basketball.

B