下列三组大写字母中由两笔写成的是_______组。A. DMW B. PRQ C. ENT
Tom has just finished writing a ______ article.
–How long has Robert ________? --Since 2004.
--Why do you want to stay at home? --Because I ________ good when I am with my family.
______ is dangerous for children to swim in the river alone.
Be more careful and we can ______ these accidents.