We can omit relative pronoun when:
The relative clause is non-defining clause, and the pronoun is the subject of the relative clause with the verb "be" (NOT verb to be).
My mother, who is an excellent cook, is thinking of opening a restaurant.
My mother, an excellent cook, is t...
@Cardinal The LDOCE lists both shrimp and shrimps as valid plurals for shrimp. I think that 4656 rice is acceptable. I'd always say x grains of rice or x rice grains, but for some reason I think that few would object to the given phrasing.
@Chocolate I don't think anything has happened to her and that she's simply taking a break. I have a feeling she'll come back soon, but who knows.
@hbtpoprock I don't think so. I would interpret the latter to mean that she's currently winning the tournament.
@Cardinal @userr2684291 It would sound very odd to me for someone to say xxxx rice in that context. The only time I can think of would be if we used "rice" to mean something like a label to describe a meal: "She wants three (orders of) noodles and six (orders of) rice", in which case we might actually say "rices", since we are thinking of it as a singular thing in that context. I agree that we can use either shrimp or shrimps in that context. Personally, I would use shrimp.
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