The science of computer, _____rapid progress has been made in recent years, is the most important of all science.
Either you or one of your students________ to attend the meeting that is due tomorrow.
Only when he apologizes for his rudeness________ to him again.
---How about your job hunting?---No luck. Now, I’ve reached the stage________ I don’t care what I do.
---What about the monthly test? Is it easy?---Yes, but I don’t think________ pass it.
________ children whose parents had died in the earthquake________ sent to live with families in other cities.