Old Richard,        ill so long, is losing his memory and needs to be attended to. 
#88627
A
to be
B
being
C
having been
D
to have been
推荐题目
This soup is cold; it needs _____.
#97524
A
to heat
B
to be heated
C
being hot
D
heated
___________his work, he went back to work after supper.
#97857
A
Having not finished
B
Not having finished
C
Not finished
D
Finishing not