In the less than two months since the reality television show—"Where Are We Going , Dad?" first aired, the show       to the top of Chinese television ratings.
#99655
A
had climbed
B
has climbed
C
climbed
D
was climbing
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Although the Eiffel Tower ________ to last for 20 years, it is still standing today.
#99837
A
has designed
B
had designed
C
is designed
D
was designed
—Ring me at six tomorrow morning ,will you?—Why that early? I_____.
#100884
A
will be sleeping
B
have slept
C
have been sleeping
D
will sleep
The watch ______ unnoticed for several days before I found it. 
#102785
A
had laid
B
had lain
C
had been laying
D
had been laid