You should have put the milk in the ice box. I expect it  ___undrinkable by now.

A.became                B.had become                C.has become            D.becomes

You should have put the milk in the ice box. I expect it _____ undrinkable by now.

A. became　　　 　　 B. had become　　　 　　 C. has become　　 　 D. becomes

You should have put the milk in the ice-box; I expect it　　 undrinkable by now.

A．becomes　 　 B．had become　 C．has become D．is becoming

You should have put the milk in the ice box．I expect it ________ undrinkable by now．

1. A.
   became
2. B.
   had become
3. C.
   has become
4. D.
   becomes