However, the eruption itself is really exciting      and I shall never forget my first sight of one.
#95013
A
to watch
B
to be watched
C
watched
D
watching
推荐题目
I saw a lighthouse _____ at the mouth of the river.
#92051
A
locating
B
location
C
located
D
which located
______ their service, the workers of the hotel are active in learning English.
#91829
A
Improving
B
To improve
C
Improve
D
Having improved
_______ many times , he still couldn’t understand it.
#94833
A
Told
B
Having been told
C
Having told
D
He had been told