Question

—Do you have anything ________ .? --Oh, thank you, I can manage it myself.

A. to do B. to be done C. doing D. do

Answer 1

B to do作定语修饰anything ,表示主语you自己做。
to be done作定语修饰anything表示不是主语you做，而是问这句话的人作。
根据下文的I can manage it myself可知是问这句话的人做。“你有事需要我做吗？

Answer 2

B anything that is to be done.

Answer 3

B

Answer 4

B

Answer 5

A