Xinjiang is so beautiful that I want to stay here for ________ week.

When the man came in, gun in hand, we all stood there, ________．

109. —He got his first book published. Itturned out to be a bestseller.—When was _____—_____ was in 2000 when he was still incollege.

I didn’t go to bed _______ my sistercame back.

periment has_________ the possibilityof the existence of any life on that planet, but it does not mean there is nolife on other planets