Traveling around the world is easy nowadays, it（） just a few hours to cross the Atlantic by plane. 

单项选择题Somepeopleoftenfeeldepressedwhentheleavesonthetrees（）yellowinthefall.

A．turning
B．turn
C．turns
D．to turn

单项选择题AsfarasIam（）,there’splentyofroomforimprovementintheserviceofyourhotel.

A．considered
B．cared
C．concerned
D．called