香烟引起棉絮木棒着火，只需多长时间（）
A.1至2分钟
B.3至7分钟
C.4至5分钟
D.8至10分钟
参考答案：B
Our new house is very _______ for me as I can get to the office in 5 minutes.
A．adaptable
B．comfortable
C．convenient
D．available
Little ________ about her own safety, though she was in great danger herself.
A．did Rose care
B．Rose did care
C．Rose does care
D．does Rose care
