If you don't know how to spell new words
题型:选择题
问题:
If you don't know how to spell new words, please ____ a dictionary. [ ]
A. look them up in
B. look up them in
C. look up in
D. look up to
If you don't know how to spell new words, please ____ a dictionary. [ ]
A. look them up in
B. look up them in
C. look up in
D. look up to