G'day Gurney,

"A lovely example. Here many greengrocers are Chinese, and they, through their signs, have introduced the idea that 'Choice!' means good!."

Here's the first paragraph under choice, a in the OED (Oxford English Dictionary):

1. a. Worthy of being chosen, select, exquisite, of picked quality, of special excellence.
   1340–70 Alex. & Dind. 727 Him a chalis ful chois wiþ good chere bringen. c1350 Will. Palerne 400 William þat choys child in to his chaumber ledde. c1400 Destr. Troy 490 The Knightes+Intill a chaumber full choise chosen þere way. c1555 Harpsfield Divorce Hen. VIII (1878) 33 Among the select and choise people of God. 1597 Hooker Eccl. Pol. v. lxii. §8 The one with the choicest wits, the other with the multitude. 1602 Warner Alb. Eng. xii. lxxiv. (1612) 308 A Choyser is not here. 1642 Fuller Holy & Prof. St. iv. xiii. 302 In discourse her words are rather fit then fine, very choice and yet not chosen. 1738 Pope Hor. Sat. ii. vi. 126 In a sea of folly toss'd, My choicest Hours of Life are lost. 1826 Disraeli Viv. Grey vi. i. 274 The secretary had+given a choice toast, sung a choice song.

Odd ... I don't see many "Chinese greengrocers" cited here!

regard(les)s,

Bob