When the American constitution ______into effect in 1789,it didn’t contain any words guaranteeing the basic rights of ordinary citizens.

A．went  B. had gone  C. has gone  D. was going

When the American constitution ______into effect in 1789,it didn’t contain any words guaranteeing the basic rights of ordinary citizens.

A.     went  B. had gone  C. has gone  D. was going

When the American constitution ______into effect in 1789,it didn’t contain any words guaranteeing the basic rights of ordinary citizens.

1. A.
   went
2. B.
   had gone
3. C.
   has gone
4. D.
   was going

When the American constitution ________ into effect in 1789, it didn’t contain any words guaranteeing the basic rights of ordinary citizens.

A．went        B．had gone          C．has gone          D．was going