题目内容
If the bottle of gas________fire, the whole building may _________.
[ ]
A. catches ; be burned to the ground
B. will catch ; be burned down
C. is on ; burn down
D. will be on; be burned down
B. will catch ; be burned down
C. is on ; burn down
D. will be on; be burned down
A
练习册系列答案
相关题目