Question

Echo _________ for half a month．She’ll come hack in two months．

1. A.
   left
2. B.
   leave
3. C.
   has left
4. D.
   has been away

Answer 1

D
考查动词时态。根据for half a month为一段时间，动词得用延续性动词，应用现在完成时态。同时句意：她将两个月后回来。说明已经离开。A和B排除，C不能与时间段连用。