________ are Bob's grandparents and they are very nice.
#55848
A
These
B
This
C
That
D
It
推荐题目
I find _______ necessary to take some warm and dry clothes with us during the walk.
#55850
A
it
B
which
C
that
D
What
–Is ____ your family photo?--Yes,_____ are my parents.
#55833
A
this; this
B
these; this
C
this; these
D
that; that
If you don’t know how to use the word, you should _________ in a dictionary.
#55810
A
look up it
B
look it up
C
look them up
D
look up them
—hat do you think of genetically modified food (转基因食品)? —We all think ______ is careless ______ some scientists to say it is safe before doing any experiment.
#55807
A
that, for
B
it, for
C
it, of
D
that, of