请用以下词适当形式填空 look, taste, seem, be, grow, smell, turn, 1. You _______very young. 2. At first those questions ________ easy, but later I found them difficult. 3. After the sports meeting, he ________very tired. 4. My younger brother ________a student last year. 5. When we________ up, we're going to help build up our country. 6. The flowers __________very sweet. 7. Her face ________red. 8. Jack ________very happy. 9. The mooncake ________good. 10. The meat _________ bad.