Without facts,we cannot form a worthwhile opinion,for we need to have factual knowledge ______ our thinking.
#98906
A
upon which to base
B
which to be based on
C
which to base on
D
to which to be based on
推荐题目
I'll have you ______ English in six months . 
#98544
A
speaking
B
speak
C
spoken
D
be able to speak
- Doing it like this means _______ time. -I didn’t mean ______ it.
#95810
A
wasting…to do
B
to waste…doing
C
waste…do
D
wasting…doing
_____ her mother had come, her face lit up.
#98295
A
Hearing
B
Having heard
C
When heard
D
When she heard
No matter how frequently _______, the works of Beethoven still attract people all overthe world.
#94629
A
performed
B
performing
C
to be performed
D
being performed