What ... that ...? [relative clause]

2 and 3.

Nona The Brit2 and 3.

1. What do pandas have that other bears don't have?

2. What do pandas have which other bears don't have?

3. What do pandas have other bears don't have?

Sentence 3 sounds wrong to me.

To me sentence 1 is fine.

Hi guys,

Even #3 sounds to me like normal everyday spoken English. The meaning certainly seems clear.

Best wishes,

CliveHi guys,

Even #3 sounds to me like normal everyday spoken English. The meaning certainly see

http://www.englishclub.com/esl-forums/viewtopic.php?p=300598#300598

#3.

#2 unnatural, but grammatical.

Hi Teo

Here's my opinion:

#1 - standard
#2 - grammatical, but probably wouldn't be used by a native speaker (unnatural).
#3 - spoken English. I agree with Clive. (But it would be best not to use this one on an English test.)

I'd have to say that #3 sounds very strange to me -- not natural.
At least I would not say it. But I don't see any grammatical reason to reject it.
Neverthess, only the first one seems right to my ear.

CJ