Thailand has decided to begin building its first standard-gauge railways in cooperation with China, ______may cost $12.2 billion.
| A．when | B．that | C．it | D．which |
MacDonald who had spent much of his time graduating from college backpacking round Europe,decided last year to settle down.
| A．when | B．while | C．since | D．before |
With no central government,the island was ruled by kings, a different region of the country.
| A．each controlling | B．each controlled |
| C．each to control | D．each was controlling |
Barack Obama’s victory is a historic victory and that promised change and overcame centuries of prejudice.
| A．one | B．it | C．the one | D．that |
The man moved forward and looked over the edge,shrinking his shoulders.
| A．accurately | B．cautiously | C．brilliantly | D．disappointedly |
Tourism, it brings in money to a country,can also result in damage to the World Heritage sites there.
| A．because | B．as | C．while | D．since |