Directions: In this part there are ten incomplete sentences, each with four suggested answers. Choose the one that you think is the best answer. Mark your answer on the ANSWER SHEET by drawing with a pencil a short bar across the corresponding letter in the brackets. ______, a man who expresses himself effectively is sure to succeed more rapidly than a man whose command of language is poor.
A．Other things being equal B．Were other things equal C．To be equal to other things D．Other things to be equal