I believe that she must have been at home last night, ________

_________, the student insisted that he should be separated from his roommates, who were noisy.

It’s ___________ beautiful music that we like it very much.

Danielis the only one of the students in the class that never_____a mistake even whenit is pointed out to him

Every minute about ____ babies are born in theword, so the world’s population is increasing by _____million every year.