21. _____ a boy of ten, he started working to support himself.
A. Being B. When still C. Because of D. While
22. ----You’ve agreed to go, but why aren’t you getting ready?
----But I ____ that you ____ me to start at once.
Adidn’t realize, wanted B. don’t realize, wanted
C. don’t realize, want D. haven’t realized, want
