Tom had been studying French hard for nearly three years he mastered it．
#30569
A
after
B
when
C
since
D
before
推荐题目
Mrs Green was so pleased ____ her daughter won the first place in the singing competition．
#31502
A
as
B
that
C
when
D
if
Sally worked late in the evening to finish her report _______ her boss could read it first next morning.
#34345
A
so that
B
because
C
before
D
now that
I promised to write to her ________I got to New York.
#31703
A
at the moment
B
the moment
C
soon
D
long before
He always brings me a pretty gift ____ he comes to visit me.
#33925
A
by the time
B
sometimes
C
every time
D
at times