患儿男，6岁，发病3日，低热乏力颌下淋巴结肿，口腔下前牙侧牙龈出血，口中常有血腥味，口臭明显、疼痛

如何预防（）

A.养成良好口腔卫生习惯，以防复发

B.炎症控制后，及早拔除病灶牙

C.使用免疫调解剂，提高免疫力

D.该病可获终身免疫，一般不复发

E.骨髓移植，治疗原发病，防止口腔症状再次出现

完成句子

1．As a result of the big earthquake in Wenchuan,the whole city________.(suffer)

由于汶川大地震,整个城市遭受了巨大的损失.

2．She________looking at nature through dirty curtains and dusty windows.(tired)

她已经厌倦了透过肮脏的窗帘和布满灰尘的窗户观看大自然.

3．Rescuers________of two men trapped in the forest.(concerned)

救援者们都担心被困在树林里的那两个人的安全.

4．It was the first time________.(face)

这是我和他第一次面对面交谈.

5．________by all the students,the teacher spoke in a loud voice.(order)

为了使所有的学生听见,老师高声发言.

6．What is he going to do if his daughter________a poor man?(fall)

如果他的女儿爱上一个穷人他打算怎么办?

7．You can never know________when she received our nice birthday presents.(excited)

你永远都不会知道她收到我们送她的漂亮生日礼物的时候是多么兴奋.

8．It took a long time for him________.(recover)

花了很长时间他才从重感冒中恢复过来.

9．He ________ what he might need during his journey and left home.(pack)

他收拾好在旅途中可能需要的东西后,就离开了家.

10．The headmaster told us that________this afternoon.(be)

校长告诉我们今天下午有个会议.