______ on ten years of observation and study, the theory shows that every one dreams every night, whether they realized it or not.
#90335
A
Basing
B
Based
C
Being based
D
Having based
推荐题目
One of the most important social problems of today is _____ jobs to the unemployed.
#98020
A
what to be given
B
having given
C
how to give
D
to have given
The boys, with this frightening person, lost their tongues.
#96253
A
to face
B
having faced
C
faced
D
facing
He started to learn English in 1990 and in the years ________ he kept on using it in his work.
#97244
A
following
B
followed
C
follow
D
that followed
Thinking of the seven orphans, who were dead in the fire, .
#92664
A
Yuan Lihai’s heart sank
B
Yuan Lihai was in deep sorrow
C
tears came to Yuan Lihai’s eyes
D
we found Yuan Lihai in tears