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A．have done　　　　　B．do

C．would do　　　　　 D．was doing

–Bob’s tape recorder is so wonderful.
--Mine is at least ___good, if not ___.

–Bob’s tape recorder is so wonderful.

--Mine is at least ___good, if not ___.

--Bob’s tape recorder is so wonderful. 

--Mine is at least ___good, if not ___.

1. A.
   as; better
2. B.
   so; very good
3. C.
   the same; the best
4. D.
   so; better

This old tape-recorder can't help ________ your English, so you have to buy a new one.

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