Mr. Smith, together with his two sons,_____Shanghai for about five months. 
#39791
A
has left
B
has been away from
C
have left
D
have been away from
推荐题目
 I ________ my homework while my parents ________ TV at 9 last night.
#38497
A
did; have watched
B
had done; were watching
C
was doing; were watching
D
would do; were watching