A small boy and his father went to have a walk.A small boy went to have a walk______.

It was _____ his mother came in ______ to prepare his lessons. A: not until；did the boy begin B: until；that the boy began C: until；did the boy begin D: not until；that the boy began

It was not until ( ) that ( ) to prepare his lessons. A: did his father come in; the boy began B: his father came in; the boy began C: did his father come in; did the boy begin D: his father came in; did the boy begin

In front of the farmhouse ______. A: does a small boy sit B: did a small boy sit C: sit a small boy D: sat a small boy

In front of the farmhouse ___. A: lay a peasant boy B: laid a peasant boy C: laid him D: did a peasant boy lie E: a peasant boy lies