进行社会主义精神文明建设，既离不开物质文明的保证又离不开法律的保证。 ( )
参考答案：对
— You should have thanked her before you left.
— I meant _____, But when I was leaving I couldn't find her anywhere. [ ]
A. to do
B. to
C. doing
D. doing so
演出经营者，在洽谈落实舞台工程的过程中，要正确处理好安全，质量和经费的关系，资金是前提，安全是保障，质量是效果。（）
