It is difficult for us to learn a lesson in life ______ we’ve actually had that lesson.
#30782
A
until
B
after
C
since
D
when
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---There is some doubt _____ the concert will be held as the company intends to redecorate the stadium next week. ---What a pity!
#32642
A
where
B
that
C
if
D
how
The boy was excited he went to Beijing.
#30893
A
the first time
B
for the first time
C
first time
D
for first time