问题补充:
When you meet new words in reading, you needn’t in a dictionary at once.
A. look up them
B. look them up
C. look for them
D. look them for
答案:
A. look up them
(答案→)B. look them up
C. look for them
D. look them for
解析:当你在阅读中遇到生词你不必马上在字典中查找他们。look up,查找,代词放中间。故选B。