The little girl can’t decide ______ thoughthere are so many kinds of MP5 in the mall.

I waved to Nancy, but she was ______ in her thoughts, and made no response.

As a husband he was __________ failure, so their marriage ended in _________ failure.

If you stick to it, this plan ______ that your companyis well prepared to deal with future challenges.

I remember a ____ famous scientist said that we shouldbelieve in ourselves first of all.