There’s no way of knowing why one man makes an important discovery ________ another man, also intelligent, fails.
The question _____ at tomorrow’s meeting is of great importance.
.Not until she arrived home _____ that her wallet had been stolen.
So far, the disease has not been _____ terrible as it seems to be.
—Hi, Tom, Any idea where Jane is? — She __ in the classroom. I saw her there just now.
Great changes ____________ in my hometown in the past few years.