---______ the farmers discovered the entrance to the secret cave in the valley?--- Totally by chance.
#85269
A
When was it that
B
How was it that
C
How it was that
D
When it was that
推荐题目
It is in the year of 2010__________ a severe drought hit Yunnan province.
#84862
A
until
B
that
C
before
D
when
Is it he or you ________ in charge of the job and supposed to complete it on time?.
#84858
A
who is
B
that is
C
who are
D
whom are
It was on a cold winter evening_______ his father left home and was never back.
#85097
A
where
B
which
C
that
D
when
It was not until near the end of the letter ____ she mentioned her own plan.
#84924
A
that
B
where
C
why
D
when
_______ that saw the rise of quite a number of famous women writers in China, such as Zhang Ailing, Xiao Hong and so on.
#85384
A
During the first half of the 20th century
B
That it was in the first half of the 20th century
C
It was in the first half of the 20th century
D
It was the first half of the 20th century