根据句意，用括号内所给单词的适当形式填空。

1.They _________(not have) a school trip.

2.How much _____(be) these green pants?

3.Sunday is the _____(one) day of a week.

4.My cousin _____(have) a cat.

5.My Birthday is October _____(twenty).

6. ______(Tina) birthday is May 23rd.

7.The boy is fourteen ___________(year) old.

8.Linda wants______ (have) a party at home.

9.My friend is an English girl. But she speaks ______(China) very well.

10.The _______(nine) month of the year is September.

银量法测定苯巴比妥含量时，要求的条件是

A．酸性
B．硝酸酸性
C．碱性
D．吡啶碱性
E．3%无水碳酸钠溶液使成一定碱性