一一Good idea.
--- Have you found your lost book_____? --- No, I haven’t. A. already B. yet C. Still
Because of the 2008 Olympic, great changes have _________ in Beijing. A. taken place B. improved C. happened
Don’t give up, __________ you will succeed one day. A. or B. but C. And
--- Where is LiLy? I can’t find her. --- She __________ a disabled children’s home to help them. A. has been to B. has gone to C. has been away
--- How long have you worked in this town? --- ________ October 21, 2001. A. Since B. For C. On