____ volcanoes now for many years, I am still amazed at their beauty as well as their potential to cause great damage.
#91442
A
Studied
B
To study
C
Having studied
D
Studying
推荐题目
____ the youth ____ the rising sun at 8 or 9 o'clock am, Mao Zedong expressed his great hope for the young men.
#98727
A
Comparing; with
B
Compared; to
C
Compared; with
D
Comparing; to
--- Why do you look sad?---There are so many problems ______.
#94408
A
remaining to settle
B
remained settling
C
remaining to be settled
D
remained to be settled
_____ in Harvard is _____ most students wish for.
#88599
A
Being educated; what
B
To educate; that
C
Eduacted; which
D
Educating; everything
She seems to prefer American TV Shows to talking to me．
#96147
A
to watch
B
to be watching
C
watching
D
having watched
The wild flowers looked like a soft orange blanket _____ the desert.
#98939
A
covering
B
covered
C
cover
D
to cover