China is the world’s largest cigarette market, _______ over 30% of the total world consumption.
| A．accounting for | B．adding up to |
| C．consisting of | D．contributing to |
31. All his attention______on the computer game, so he even didn't notice his mother enter the room.
| A．has been fixed | B．was fixing | C．was fixed | D．Fixed |
30. The No. 5 subway line, ______in October, 2007, has greatly improved the traffic conditions in Beijing.
| A．opened | B．was opened | C．being opened | D．to be opened |
29. I like Mr. Miner's speech; it was clear and______the point.
| A．at | B．on | C．to | D．Of |
28. The firm invested approximately 60 million dollars in________it says is the world’s largest bottle-bottle recycling plant.
| A．that | B．where | C．what | D．How |
27. Little Anna's parents walked slowly, one after________, through the shallow water of a stream to search for her lost bag.
A. the other B_ another C. other D. Others