I. Choose the suitable words in the box to fill in the blanks:
embroidered ; encouragement ; casual ; material ; experiments ; persuade ; self-confident ; majority ; modernized ; symbol
1.................. of young people like to go out for dinner at the weekend
2.They are doing many .................. on the animals for a new vaccine
3.Although I don't like this shirt, the seller tries to .................. me to buy it
4.What .................. is this dress made of?
5.Many factories are .................. from modern machines and equipment
6.The dove is a universal .................. of peace
7.She loves wearing .................. jeans when going out
8.The candidates felt .................. in their performances
9.Some students said they preferred wearing.................. clothes to wearing uniforms
10................... is necessary to help learners to show their ideas