—When did your brother begin to show his interest in medicine.—It was a Saturday _____ he noticed his classmate experimenting on a frog in the lab.
#77644
A
that
B
what
C
when
D
which
推荐题目
The visiting professor gave us some advice,________ of great help to our English learning.
#75205
A
I think it is
B
I think which is
C
which I think is
D
which I think it is
Cheer up! Everyone may have periods in their lives everything seems tough.
#75810
A
which
B
where
C
when
D
that
Recently our community has launched a campaign among all the residents , ____ we are called upon to do our little but to prevent the worsening environment.
#75131
A
where
B
which
C
as
D
when
Everyone can remember the things and the people ______made them deeply moved during the earthquake in Wenchuan, Sichuan Province
#78206
A
who
B
which
C
/
D
that
He forgot to lock the door, _______of course, made things even worse.
#75415
A
who
B
whom
C
which
D
what