NOT UNTIL A MONKEY IS SEVERAL YEARS OLD …..…TO EXHIBIT SIGNS OF IND...

21. - INVERSION BAI TAP DAP AN 21. - INVERSION BAI TAP DAP AN
INVERSION BAI TAP DAP AN
21.Not until a monkey is several years old …..…to exhibit signs of independence from its mother.A. it begins B. does it begin C. and begin D. is it begin