___ were known as "barefoot doctors" were not barefooted.
A. Those
B. What
C. Which
D. Of which
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___ one of the two boys wants to try.
A. Each
B. Every
C. No
D. Some
I've invited ___ of my colleagues in turn.
A. every
B. none
C. no one
D. each
___ are clever.
A. Both them
B. The both two boys
C. Both of boys
D. Both of the two boys
In spring farmers are busy; some are ploughing, ___ seeding.
A. the others
B. some others
C. others
D. the other