We were in ________ when we left we forgot the airline tickets.

[　　]

The science of medicine, ________ progress has been very rapid lately, is perhaps the most important of all the sciences.

[　　]

The man's life ________ if he had been sent to a better hospital.

[　　]

Since the war broke out, many world leaders condemned (谴责) the US-led war against Iraq, calling for the bombing ________ thousands of lives.

[　　]

It was more than fifteen years ago ________ I entered the laboratory of Professor Agassiz.

[　　]

I'll return the book to the library as soon as I ________ it.

[　　]

He has ________ great interest in ________ history, especially in ________ history of Tang Dynasty.

[　　]

You ________ your tooth pulled out before it rot completely.

[　　]

Let's say that you could go there again, how ________ feel?

[　　]

He ________ the 9:20 train because he didn't leave home till 9:25.

[　　]