It was only after he had read the papers ________ Mr.Gross realized the task before him was extremely difficult to complete.                             (2013·大纲全国,30)
#84699
A
when
B
that
C
which
D
what
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—________ you write so well?—By reading and keeping diaries every day.
#84710
A
How is it that
B
Is it how that
C
How it is that
D
What is it that
It was ______ his office.
#84830
A
not until the rain stopped did he leave
B
not until did the rain stop that he left
C
not until the rain stopped when he left
D
not until the rain stopped that he left