It is a pity that the industrial cities _____ in the nineteenth century do not attract visitors.
#92748
A
to be built
B
having built
C
being built
D
built
推荐题目
The rules of our school don’t allow ______ at school. That is to say, Nobody is allowed _____ here.
#98553
A
to smoke; to
B
smoking; smoking
C
to smoke; smoking
D
smoking; to smoke
 The experts are trying to find ways of ____ the animals in danger.
#96792
A
rescuing
B
dragging
C
seizing
D
watching out
Tom failed ______ the experiment yesterday.
#97649
A
doing
B
did
C
to do
D
do