It was a pity that the great scientist died      his research unfinished. 
#91295
A
for
B
with
C
from
D
of
推荐题目
I couldn’t do my homework with all that noise           .
#91398
A
going on
B
goes on
C
went on
D
to go on
I have never dreamed of _______ such a good hotel in this town.
#91497
A
there was
B
there is
C
there being
D
there have
______, a man who expresses himself effectively is sure to succeed more rapidly than a man whose command of English is poor. 
#91484
A
Other things being equal
B
Other things be equal
C
To be equal to other things
D
Other things to be equal
I have two elder brothers, ____ in the army for ten years.
#91130
A
the elder of whom served
B
the older having served
C
the older of which served
D
the elder one has served