By the time he was twelve, Edison ________ to make a living by himself .
#102887
A
would begin
B
has begun
C
had begun
D
was begun
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A killer whale at Sea World Orlando jumped out of its tank on Wednesday and fatally attacked a worker as horrified visitors _______.
#104053
A
has been looking up
B
looked on
C
had looked off
D
was looking in
The hard life in the mountainous area he has adapted to ____ a real challenge to anyone.
#101841
A
mean
B
means
C
meant
D
meaning
The poor little girl _______ so much since her parents died .
#103841
A
went through
B
has gone through
C
went over
D
has gone over
We should know that we can only reach the top if we are ready to _________ and learn from failure.
#99658
A
deal with
B
rely on
C
watch over
D
sort out
As you can see，the number of cars on our roads________rising these days.
#100314
A
was keeping
B
keep
C
keeps
D
were keeping