问题
选择题
Through so much trouble，he learned ________ everyone needed friendship and ________self confidence is important.
A．that；/
B．/；/
C．that；that
D．/；what
答案
答案：C
考查宾语从句的连接词。________ everyone needed friendship and ________self confidence is important.是两个并列的宾从，从句都不缺成分，所以用that引导，第一个that可以省略，第二个不可少，所以选C。