1 . Tom's love for the Chinese bamboo flute started in elementary school,_________clear sound guided him onto the road of flute learning.(用适当的词填空)

2 . Spring tea during Grain Rain is rich in vitamins and amino acids, _________ can help to remove heat from the body and is good for the eyes. (用适当的词填空)

3 . It will be guided by three “red lines”, one of ________ will include about 103 million hectares of permanent farmland with the aim of boosting safety, improving quality and preventing nonagricultural use. (用适当的词填空)

4 . Different colors can create different moods in your space, some of ________ may not be favorable to sleep. (用适当的词填空)

5 . The custom is particularly popular in the vast countryside, ________ every household will be busy cleaning the whole house and sticking colorful pictures or paper cuttings on their doors, windows and walls. (用适当的词填空)

6 . Toward the end of my teaching career, I became a teacher librarian, ________ aroused my love for being surrounded by books. (用适当的词填空)

7 . Since the first ceremony in 1929, ________only thirteen awards were given out, the Oscars have grown in size and popularity. (用适当的词填空)

8 . At present the masters use the full face, painted silk masks, ________can be worn in layers and be pulled off one by one in the blink of an eye. (用适当的词填空)

9 . The lifestyle, however, was laid down by two historical men of letters. One was Bai Juyi, ________ rebuilt the West Lake and made a new bank to benefit the locals. (用适当的词填空)

10 . There are many features the app offers, and my favorite is the birdsong listening feature, _______ you can turn on your phone’s microphone and hear recorded diverse birdsongs. (用适当的词填空)