Children find_____difficult to sit for hours with little to do while flying.
#16221
A
which
B
this
C
that
D
it
推荐题目
The children are giving their classroom a good cleaning, ___ are sweeping; ___ are mopping.
#16994
A
Some…the other
B
Some…others
C
Some…others
D
Some..others
Determination is a kind of basic quality and this is what________ takes to do jobs well.
#15029
A
it
B
that
C
one
D
which
His sudden look of fear made _____ clear that he had something to do with the matter．
#16652
A
him
B
this
C
it
D
that