根据语境，将单词补充完整。

1. The girl is a cl_ _er pupil

2. There are many boats on the r_v_r.

3. I will take my k_ _e on Tuesday.

4. What's the w_ _ther like today?

5. Beijing is bi_ _er than Tianjin.

病历摘要：患者女性，40岁，近3个月来诉胸骨后烧灼感伴疼痛，进食或活动后加重。

哪些因素可成为反流性食管炎的诱因？（）

A.肥胖

B.腹水

C.妊娠

D.运动

E.吸烟

F.胃内压降低