He has made another wonderful discovery, _____ I think is of great importance to science.
#77865
A
which
B
what
C
when
D
that
推荐题目
Children under sixteen are not permitted to participate in such kind of activities ________ bad for their mental development.
#76601
A
as is
B
as are
C
that are
D
that they are
The old town has narrow streets and small houses _____are built close to each other．
#77939
A
they
B
where
C
what
D
that
The photo often reminds me of the scene _____ we were kept reading and writing after school.
#76406
A
on which
B
where
C
which
D
why