_isknowntotheworld,MarkTwainwasagreatAmericanwriter.

This article __ more attention to the problem of cultural conflicts.

Don’t ask him how old he is. He’s really ____about it.

__________inthoughtwhiledriving,healmostranintothecarcomingintheoppositedirection.

Wheneverhecomestoourgarden,hecan’thelp_________theflowers.