班主任的下列工作中，（ ）是开展其他工作的前提。

(单选题)I find painting and listening to music ______. (单选题)______ 6 world powers have accepted ______ Iranian offer for (单选题)—Why is the cake so expensive?—Maybe you don’t know a cake m (单选题)In order to enhance market competitiveness, we welcome any c (单选题)Jenny feels a blankness ______ she once felt a sense of purp (单选题)The last letter ______ arrived yesterday morning left him __ (单选题)—Tom has made great progress recently.—______ and ______. (单选题)擅长表现妇女和儿童形象的印象派画家是（ ）。 (单选题)下列位于意大利的著名建筑是（ ）。 (单选题)20世纪杰出的超现实主义画家达利的代表作是（ ）。