用所给单词的适当形式填空。

1. As a child the thought kept __ (occur) to me, "Who am I?"

2. Cheer up! All the signs __ (indicate) that business will get better.

3. It is time that the entertainment industry of China __ ( reform) itself.

4. However, most people have not yet ____ (grasp)what we have  been saying.

5. My uncle owns a little farm. Sometimes he __ (hire) two or three labourers to help his harvest.

男性，18岁。持续发热1周伴乏力，厌食入院。体检：体温39.4℃，脉搏92次／min，肝肋下2cm，脾肋下1cm。化验：WBC4.0×10⁹／L，N0.62（62%），L0.35（35%），M0.03（3%），血培养伤寒杆菌生长，经氯霉素治疗5天后体温正常，发病第18天解黑便1次，量约50g。

伤寒传染性最强时期是（）。

A.起病后第2～4周

B.起病后1～2周内

C.起病后1周内

D.潜伏期

E.恢复期