question 18
 

A、It provides a chance for people to think deeply.
B、It makes us treasure the time.
C、It enables one to identify true friends.
D、It helps us take care of problems more efficiently.
What is an advantage of spending one's time alone?
讲话中提到,独处也能让你更有效地处理问题。由此可知D项为正确答案。其他三项讲话中并未提及,故均排除。