连词成句

1. his,are,these,brothers(.)

      _______________________

2. is,that,sister,his(.)

      _______________________

3. my,is,this,mother(.)

__________________________

4. and, that, father, is, my, is, this, mother, my(.)

__________________________

5. friend,not,is,he,my(.)

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上腔静脉综合征最常见于

A．纵隔肿瘤

B．胸骨后甲状腺肿

C．慢性缩窄性心包炎

D．肺尖部结核

E．肺癌