I really wonder ______ he has posted me many parcels _____ we worked together .
#80505
A
how ; after
B
why ; when
C
when ; before
D
why ; since
推荐题目
They held a meeting ____ they could hear everyone’s idea.
#30967
A
even if
B
now that
C
in case
D
so that
It puzzles the scientists _____ some mammals produce their young _____ others lay eggs.
#30772
A
that; while
B
what; while
C
that; as
D
what; as
—I’m green at everything. —Don’t worry. ________you get older，you will get more experience.
#31985
A
As
B
Till
C
Unless
D
Since
In some countries such as France or Italy, it’s common to exchange a kiss when shaking hands, ______ in China, it’s not acceptable.
#30709
A
while
B
when
C
if
D
because