My opinion is that [1] is wrong. Perfectly understandable, but wrong. I agree with Longman.
New words, one handy idiom, and a 2-minute quiz — delivered to your inbox to keep your streak alive.
but now that I've typed it all out I'm going to leave it here
Paco2004
Hello Teachers
Oxford WordPower Dictionary gives an example below for "recommend".
[1] Could you recommend me a good hotel in Paris?
On the other hand Longman Dictionary of Common Errors says that [2] is OK but [3] is no good.
[2] (o) I recommend a walk alon
Paco2004 They recommended the bookstore to Mary.I only hear people say 1 and 4
They recommended Mary the bookstore.
Mary was recommended the bookstore.
The bookstore was recommended to Mary.