If youâre a gourmet gardener whoâd like to give some Asian vegetables space in your yard, check out the specialty seed catalogs for bok choy, pak choy, Chinese broccoli, Chinese cabbage (many kinds), Chinese mustard, daikon radish, garland chrysanthemum, tyfon and snow peas.
In general, do not use a comma before and or or in a series: The snow stalled cars, buses and trains. Use commas to separate elements in a series, but do not put a comma before the conjunction in a simple series: The flag is red, white and blue.
The manual holds that women mustn't choose a programme themselves, but instead wait to be assigned to a module. You use a comma before but if it introduces an independent complete clause. As there's no independent clause after but in the sentence presented above, it doesn't need a comma before but. The manual holds that women must not choose a programme themselves, but instead wait to be assigned to a module. Comma usage varies among writers.