问政于民、问需于民、问计于民,首先在问,其次在行。这蕴涵的哲学道理有( )①人民群众的要求都是合理的 ②人民群众是实践的主体,是历史的创造者 ③实践是认识的最重要来源之一 ④实践是认识的最终目的
The villagers planted many trees in and around the village, which, _____, provide them with a beautiful scenery and much fresher air.
Out ______ when the bell rang.
When he was a child, he ______ watch TV whenever he wanted to.
Professor John will give us a lecture on how to learn English, but when and where _____ yet.
Having taken our seats, _______.