Only an hour ago ________ out why he was absent.
#81956
A
did the teacher found
B
the teacher found
C
did the teacher find
D
had the teacher found
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Only when they came ___________. 
#81587
A
I left the office
B
did I leave the office
C
left I the office
D
I did leave the office
These problems, ________, will seriously affect the growth of teenagers and even the nation’s future.
#80148
A
not if solved properly
B
if solved properly
C
if not solved properly
D
not if properly solved
________ going to the program If You Are the One, she knew she had to be there or her mother would be unhappy. 
#80188
A
Although much she disliked
B
Much although she disliked
C
As she disliked much
D
Much as she disliked