While listening to the concert, the audience is required to remain ______ and keep quiet.
#93668
A
seated
B
to be seated
C
seating
D
to seat
推荐题目
We’re looking forward __________ the photo exhibition.
#95398
A
to visiting
B
to visit
C
to having visited
D
visiting
There is a new problem________in the popularity of private cars that road conditions need improving.
#92143
A
involved
B
to involve
C
involving
D
being involved
In many countries, packets of cigarettes come with a government health warning ______ them.
#88674
A
attaching with
B
attached with
C
attaching to
D
attached to
Every year about one million tourists visit Stonehenge, which is believed __________before the Pyramids, about 4,000 years ago.
#94253
A
to build
B
to have built
C
to be built
D
to have been built