Question

Through so much trouble，he learned ________ everyone needed friendship and ________self confidence is important.

1. A.
   that；/
2. B.
   /；/
3. C.
   that；that
4. D.
   /；what

Answer 1

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。