A new computer ______ around $3,000.
A. pays
B. spends
C. takes
D. costs
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This kind of sofa looks rather hard but actually it is very comfortable to sit ______.
A. at
B. on
C. over
D. Under
The Nanjing Yangtze River Bridge is one of the longest bridges that ______ over the Yangtze River.
A. have ever built
B. were ever built
C. are ever built
D. have ever been built
Chinese is spoken by the largest people of the world, ______ is true.
A. that
B. what
C. this
D. Which
We must take care that we have not ______ any detail in the detection.
A. disappeared
B. delivered
C. thrown
D. Neglected