How the big forest fire has          remains to be a mystery.
#66249
A
turned up
B
broken out
C
taken place
D
broken up
推荐题目
——Watch! ——I ____ but ____ I ____ anything unusual.
#82021
A
watched; have watched
B
have watched; am not seeing
C
was watching; wasn’t seeing
D
am watching; don’t see
The book has been finished and will ______ next month.
#74876
A
come about
B
come true
C
come out
D
come along