.The artist made up his mind to devote all he could ____his English beforegoing abraod. 
#96753
A
improving
B
to improve
C
imprve
D
to improving
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Mr.Smith was very glad _____ as the manager of  the company.
#93725
A
being appointed
B
having appointed
C
to have appointed
D
to have been appointed
________ that I was a regular visitor, the servant let me in.
#97711
A
Having seen
B
Seen
C
Seeing
D
To see