_______ confidence and patience, they failed to settle the difficult problem.
#89586
A
Lack in
B
Lacking of
C
Lacking
D
Having lacked
推荐题目
    Our trip was_______. We did not find anything unusual.
#97376
A
exciting
B
disappointing
C
excited
D
disappointed
.Professor White has received a letter ___ to give a lecture in Peking University.
#97324
A
to be invited
B
being invited
C
invited
D
inviting him
It is no use________without doing.
#88493
A
to promise
B
promising
C
promise
D
to be promised