It was in 1990 ______ the medicine was tested on human patients.
#85003
A
since
B
that
C
before
D
when
推荐题目
It was not until all the fish died in the river_____the villagers realized the serious pollution.
#85154
A
where
B
that
C
what
D
which
I think it’s the driver rather than the passengers who______ for the accident.
#85455
A
is to blame
B
are to blame
C
are to be blamed
D
should blame.
It was with great joy ________ he received the news that his lost daughter had been found.
#84671
A
because
B
which
C
who
D
that