If you don' t know a word you can the word in a dictionary.A. look upB. look downC. loo

问题补充：

If you don t know a word, you can the word in a dictionary.

A. look up

B. look down

C. look over

D. look out

答案：

(答案→)A. look up

B. look down

C. look over

D. look out

解析：可联系答.案.网客服索取。