This problem may lead to more serious ones if _____ unsolved.
#94478
A
left
B
keeping
C
remained
D
making
推荐题目
Birds'singing is sometimes a warning to other birds________away.
#92175
A
staying
B
stayed
C
stay
D
to stay
Prices of daily goods _______ through a computer can be lower than store prices.
#95173
A
are bought
B
bought
C
been bought
D
buying
Limited life should be made good use _______ our own dreams rather than be a follower or do what we are told to.
#91522
A
of to fulfill
B
of fulfilling
C
to fulfill
D
to fulfilling
Victor apologized for __________ to inform me of the change in the plan.
#95309
A
his being not able
B
him not to be able
C
his not being able
D
him to be not able