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
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Both the parents and James           London. They will come back soon.
#40217
A
has been to
B
have been to
C
has gone to
D
have gone to
—What ________ you?—I lost my keys.
#42445
A
happened
B
happens
C
happened to
D
happens to