His health failing, ______ last year.
#92529
A
so the school gave Mr. Smith leave
B
the school had given Mr. Smith leave
C
so Mr. Smith went on leave from work
D
Mr. Smith went on leave from work
推荐题目
When one makes new friends, don’t forget ______ old ones.
#95739
A
to come up with
B
losing sight of
C
to keep track of
D
keeping in touch with
The little boy is lucky enough to have escaped ____ to death in the big fire. 
#98699
A
burning
B
to be burned
C
being burned
D
to have been burned