The Dongying-Hainan airline for about 5 months. I have taken the flights three times.
#38883
A
is open
B
has opened
C
has been open
D
has been opened
推荐题目
The lamb _________already. It_ __________for 2 days.
#41729
A
has died , has been dead
B
died, has been dead
C
has been dead, died
D
died , has died
The volunteers __ a lot of help to the community for nearly ten years.
#41617
A
offered
B
will offer
C
are offering
D
have offered
---I’m sorry to have kept you waiting long. ---Never mind. I ____ here for only a few minutes.
#42613
A
have been
B
have come
C
have arrived
D
waited