问题
选择题
I want to help my mother, but I don't know _________.
[ ]A. how to do
B. what to do
C. where to do
D. why to do
答案
答案：B
搜题请搜索小程序“爱下问搜题”
I want to help my mother, but I don't know _________.
[ ]A. how to do
B. what to do
C. where to do
D. why to do
答案：B