Question

He has ________ for two years. Two years ________ a long time.

[　　]

A．left home; are

B．left home; is

C．been away from home; is

D．been away from home; are

Answer 1

答案：C
提示：

for+一段时间，谓语动词应用延续性动词；时间作主语，谓语用单数。