Question

If you have some good ideas, please     .
A. write it down
B. write them down
C. write down them

Answer 1

B

write …down表示的是记下…为动词和副词构成的短语，当其宾语为人称代词宾格时，放在两词的中间，又根据前句some good ideas ，故选B，用them来代替。