When you go outing with the children, you must see to ______that they are safe.
#15619
A
them
B
everything
C
it
D
yourself
推荐题目
The invention of artificial hearts marked a turning point in the battle ________ heart disease.
#14703
A
among
B
for
C
against
D
between
I was disappointed with the film. I had expected _______ to be much better.
#14975
A
that
B
this
C
one
D
it
Our classroom is very clean. Do you know who＿＿＿cleaned it?
#16940
A
was it that
B
it was that
C
was it who
D
he was
There are ___ kinds of reference books in the library.
#16992
A
other some
B
some other
C
some others
D
others some