He made another wonderful discovery, ______ of great importance to science.
#93713
A
which I think is
B
which I think it is
C
which I think
D
I think which is
推荐题目
In the past few years, __________much improvement in the traffic.
#92127
A
there has been
B
there has had
C
there have been
D
there had been
Everyone had an application form in his hand, but no one knew which office ___.
#92269
A
to send it to
B
to send it
C
to be sent to
D
to have it sent
It suddenly _________ to the detective that the millionaire was probably murdered by his own daughter.
#92369
A
happened
B
occurred
C
thought
D
took place
It is reported that between the year 1550 and 1950 about one kind of living things___each year .
#93811
A
died out
B
died of
C
died from
D
died down