–Dave, we will leave in10 minutes. Are you ready?
– No, I ________ our guide book and towels yet.
A. don’t pack B. didn’t pack
C. have packed D. haven’t packed
–What does she usually use the computer _________?
– She usually uses it to chat with her friends.
A. to B. on C. for D. about
The factory _________ since two years ago.
A. has been open B. has opened
C. was open D. opened
–Where is your father?
– He _________ Australia and he_________ Sydney for two weeks.
A. has been to; has been in
B. has gone to; has been in
C. has been in; has been to
D. has gone to; has been to
– How long has Robot _________ ?
– Since2004.
A. been to Beijing B. become a policeman
C. joined the Art Club D. studied in this school
Great changes _________ in Nanjing since the1990s.
A. took place B. were taken place
C. have taken place D. have been taken place
