No one has yet succeeded in explaining the ___ of how life began.
#6736
A
cause
B
problem
C
reason
D
puzzle
推荐题目
To make members of a team perform better, the trainer first of all has to know their _____ and weaknesses.
#7464
A
strengths
B
benefits
C
techniques
D
values
Some famous singers live on the _________ from their record sales.
#7571
A
salary
B
value
C
bill
D
income
There are_____that high school cheating may be on the rise.
#5262
A
evidences
B
symbols
C
sights
D
scenes
We have phoned her several times, but unfortunately she is still out of _________.
#5992
A
order
B
control
C
sight
D
reach
Whenever she sees the ______ of bloody fighting on the screen, she will cover her eyes with her hands, ______at them.
#6667
A
sights; not daring to look
B
scenes; daring not to look
C
views; dared not look
D
scenes; not daring to look