— Where is your father, Li Xiang?— He __________ Beijing on business. He will be back in two days.A. has been toB. have gone toC. has gone to
---Where did you get the dictionary? --- From the library. And I have ______ it for two weeks.
The accident happened ________ the afternoon of April 15.
After playing football about half an hour, the students took _________ rest.
It is said that potato chips ____________ by mistake about a hundred years ago.
She told us a story. Her voice sounded ___________.