Don’t worry too much about ______ mistakes. They are _____ natural part of learning.

A. /; a　　　　　　　　　　       B. the; /

C. /; the　　　　　　　　　　   D. the; the

A. /; a　　　　　　　　　　       B. the; /

C. /; the　　　　　　　　　　   D. the; the

Don’t worry too much about         mistakes.They are         natural part of learning.

A./；a                          B.the;/?                       C./;the                          D.the;the

Don’t worry too much about________mistakes. They are ______ natural part of learning.

         A.不填；a        B. the；a          C. the；不填   D. the; the

 Don’t worry too much about       mistakes. They are _     natural part of learning.

       A.不填；a                B. the；a                  C. the；不填             D. the; the