____ 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
As we came to the work site, the workers were seen _______the new house.
#97033
A
building
B
build
C
built
D
to build
_____into the house, the thief was soon caught by the police.
#96451
A
Having seen him steal
B
Seen stolen
C
Seen stealing
D
Seeing him steal
If you go to the souvenir shops in places of interest, sometimes you can’t help ________ into buying something fake.
#95751
A
to persuade
B
persuading
C
be persuaded
D
being persuaded
_______ from father to son, the music has not changed for centuries.
#90759
A
Passing
B
Passed
C
Having passed
D
To pass
This is one of the problems_____ at the meeting at present.
#94802
A
discussed
B
discussing
C
to be discussing
D
being discussed