855.We're trying to ring you back, Ryan, but we think we ___your number incorrectly.

A.looked up

B.took down

C.worked out

D.brought about

856.She _____ Japanese when she was in Japan. Now she can speak it freely.

A.picked out

B.made out

C.made up

D.picked up 

855.答案是B;

look up査找;take down记下，写下;work out制订，算出；bring about带来，产生，引起，导致。

856.答案是D;

pick out挑选，辨认;make out填写，理解，辨别;make up化妆，编造，组成； pick up偶然、无意中学会。