she tells him the truth now, he'll simply keep on asking her until she does.

A. Unless            B. Once         C. If         D. Immediately

         she tells him the truth now, he’ll simply keep on asking her until she does.

1. A.
   Unless
2. B.
   Once
3. C.
   If
4. D.
   Immediately

       She tells him the truth now, he’ll simply keep on asking her until she does.

A．Immediately  B．If                   C．Unless            D．Once

         she tells him the truth now, he’ll simply keep on asking her until she does.