1 . “Chinese New Year Paintings” is another Xiqu animation in __________ traditional costumes and New Year painting elements are combined through puppetry. (用适当的词填空)

2 . Some ancient texts describes a city called Heracleion, _______ was located at the mouth of the Nile River and disappeared beneath the waves 1,200 years ago. (用适当的词填空)

3 . As a result, some old libraries became musty and attracted various pests, some of which then took the form of insects and worms loving to eat paper and stay inside of books, _______ they would spend their entire lives. It was just natural to transfer the “bookworm” idea to humans who loved to consume books as much as these pests did. (用适当的词填空)

4 . Does tourism, ________ some people suggest, have impact on the traditional values of local population? (用适当的词填空)