问题
填空题
用所给词的适当形式填空。
1. Can you (help)me with my Chinese? Sure.
2. How many (child)are there in the car? Three.
3. Look ! The girl (dance)under the tree.
4. I (take)part in the sports meeting next week.
5. I'd like a VCD of (China)cartoons.
6. I want (be)a policeman.
7. They (give)a singing concert last Saturday.
8. it's the (one)of July.
9. I have a new book, but he (have)two.
10. This tie is my (father).
答案
1. help 2.children 3.is dancing 4.am going to take 5.Chinese 6.to be 7.gave
8. first 9.has 10. father's
)是一种珍贵的香料，广泛应用于香料、医药、染料及农药等行业。以下是以苯为原料牛成龙葵醛的一种合成路线（部分反应条件及副产物已略去） 