用所给动词的适当形式填空。

1. I'm learning _____ (speak) English.

2. He can't decide when _____ (start).

3. His greatest wish is _____ (see) an end towards.

4. I asked him _____ (show) me the new dictionary.

5. They felt the house _____ (shake) for a while.

6. He promised _____ (not tell) anyone about it

7. Wang Gang is always the first _____ (get) to the school in his class.

有关肺的外呼吸，以下叙述哪一项是错误的()

A．外呼吸的主要环节包括肺的通气与换气功能

B．肺的换气功能指的是肺泡膜两侧的气体交换

C．单位时间内气体的弥散量取决于弥散面积，肺泡膜厚度以及两侧的分压差

D．O的弥散力要比CO大20倍左右

E．aDO是对肺通气或换气功能衰竭进行鉴别的重要指标之一