用括号中所给动词的适当形式填空

1. Don't spend too much time __________(chat) on the Internet.

2. We always have a great time __________(study) English.

3. Our teacher asked us __________(open) the windows.

4. What games __________ they __________(play)? Let's go and have a look.

5. Simon __________(go) to the club last night.

五岁患儿，摔倒两天，摔倒时肘半屈位，右手掌着地、查体肘部压痛、畸形，X线诊断为右肱骨髁上骨折，给予复位、夹板固定，现肿痛剧烈，逐渐加重。

如考虑其存在骨筋膜室综合征，最可能的病因是（）

A.伤后患肢没有抬高

B.软组织挫伤严重

C.骨折端继续出血

D.敷料包扎过紧

E.骨折移位明显