I feel so excited! At this time tomorrow morning, I ________ to Shanghai.
he field research will take Joan and Paul about five months; it will be a long time _______ we meet them again.
He was told that it would be at least three more monthshe could recover and return to work.
It is difficult for us to learn a lesson in life ____we’ve actually had that lesson.
---Where’s that report? ---I brought it to you ________ you were in Mr. Black’s office yesterday.
Don’t promise anything ______ you are one hundred percent sure.