介绍： 1.
A. Security concerns.
B. Financial crisis.
C. Environmental pollution.
D. Intense relationship with Yemen.
2.
A. Yemen.
B. Detroit.
C. Al Qaeda.
D. Middle East.

1. Why did U.S. government close its embassy in Yemen?
A. Security concerns.
B. Financial crisis.
C. Environmental pollution.
D. Intense relatio...

介绍： 1.
A. Security concerns.
B. Financial crisis.
C. Environmental pollution.
D. Intense relationship with Yemen.
2.
A. Yemen.
B. Detroit.
C. Al Qaeda.
D. Middle East.

1. Why did U.S. government close its embassy in Yemen?
A. Security concerns.
B. Financial crisis.
C. Environmental pollution.
D. Intense relationship with Yemen.

2. Where is the plane heading to?
A. Yemen.
B. Detroit.
C. Al Qaeda.
D. Middle East.

The U.S. government closes its embassy（大使馆） in the Middle Eastern country of Yemen, and that is because of security（安全） concerns（担心，忧虑）. One official says that a group called al Qaeda（基地组织） in the Arabian Peninsula（半岛） might be planning an attack against the facility（设施）. That same group said it was behind an attempted（未遂的，企图的） plot to set off（点燃） an explosive onboard a plane heading to Detroit, Michigan. That took place on Christmas day. The suspect（嫌疑犯） allegedly（据说; 依其申述） brought the explosives on the plane in his underwear. The plan failed when the device（装置） he tried to use didn't detonate（[使] 爆炸，引爆; 触发） correctly. Some people have asked how the suspect made it past security. One U.S. official says it's because of human error（失误）. President Obama has promised that everyone involved in the attack will be held accountable（负有责任的） for it. But some critics（批评者） argue that the president's response to the situation hasn't been fast enough, hasn't been aggressive enough.

答案：AB