题目内容
I don’t know ______ he will be back ______ the Dragon Boat Festival.
A. whether, on B. if, in
C. whether, in D. that, at
练习册系列答案
相关题目
题目内容
I don’t know ______ he will be back ______ the Dragon Boat Festival.
A. whether, on B. if, in
C. whether, in D. that, at