问题详情:
My biggest challenge is _____ to behave at the dinner table.
A. to learn what B. learning when C. to learn what D. learning how
【回答】
D
知识点:相似 相近词比较
题型:选择题
问题详情:
My biggest challenge is _____ to behave at the dinner table.
A. to learn what B. learning when C. to learn what D. learning how
【回答】
D
知识点:相似 相近词比较
题型:选择题