题目内容
—Fire is very useful to human!
—Yes, especially in winter a fire _____________warm.
A. used to keep B. can be used to keep
C. is used to keeping D. was used to keeping
【答案】
B
【解析】略
练习册系列答案
相关题目
题目内容
—Fire is very useful to human!
—Yes, especially in winter a fire _____________warm.
A. used to keep B. can be used to keep
C. is used to keeping D. was used to keeping
B
【解析】略