Doctor Smith has made another wonderful discovery, _______ great importance.
#30394
A
which I think is of
B
which I think it is of
C
which is I think
D
I think which is
推荐题目
Unlike watching TV, reading is a highly active process _______ it requires attention as well as memory and imagination.
#80214
A
until
B
but
C
unless
D
for
Read this story，________you will realize that not everything can be bought with money. (2013·四川，4)
#30220
A
or
B
and
C
but
D
so
Find ways to praise your children often，________ you'll find they will open their hearts to you.(2011·山东)
#30481
A
till
B
or
C
and
D
but
Many workers were organized to clear away remained of the World Trade Center.
#30115
A
those
B
that
C
what
D
where