The findings of the research, _________ on a lot of experiments, are convincing.
#96102
A
to base
B
based
C
is based
D
basing
推荐题目
I saw a lighthouse _____ at the mouth of the river.
#92051
A
locating
B
location
C
located
D
which located
An earthquake of 9 magnitude struck off the coast of Japan on Friday,______ thousands of people dead and more missing．
#95552
A
caused
B
causing
C
having caused
D
to cause
Mrs. White found her husband surrounded by letters and papers and ______very worried.
#93014
A
look
B
looks
C
looking
D
to look
______ 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