The director wants to make sure no one will solve the mystery until it ________ at the end of the horror film. 
#38260
A
is explained
B
will be explained
C
explains 
D
has explained
推荐题目
You ______. Don’t talk on the phone.
#39096
A
will drive
B
are driving
C
were driving
D
have driven
 Every year, more than 70.000,000 sharks____for their fins.
#36735
A
were killed
B
have killed
C
are killed
D
will kill
 —Do John and Betty have a child? —Yes. They _______ for twenty years.
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A
married
B
have married
C
have got married
D
have been married
Great changes _________ in Tongren in the past five years.
#42335
A
have happened
B
have taken place
C
have been happened
D
have been taken place