— Hey, you haven’t been acting like yourself. Everything OK? —______ .
The young man was modest and worked hard,and gradually managed to________his status.
If we just bring over products developed for the US market,we will soon be________to just competing on price.
The quarrel________to the fight started from their disbelief in each other.
(2013·皖南八校三次联考)Launched in March 2010,ChinaFace has been a daily news feature________on a Chinese individual.
—Shall I help you with the math problem?—________.