用括号内所给动词的适当形式填空。

1. — Listen, who ________ (read) in the classroom? 

    — Maybe Kate ________ (be).

2. Amy ________ (write) good English but ________ (not speak) English well.

3. —                Lily               (listen) to the teacher?

    — No, she isn't.

4. I ________ (like) drawing pictures very much. Look! I ________ (draw) a big tree.

5. The little girl ________ (look) like her father. Now, she ________ (look) at the photos of her family.

关于运动单位募集描述正确的是（）。

A.运动单位募集越少，肌力就越大

B.运动神经冲动的频率越高，激活的运动单位越少

C.运动神经冲动的频率越低，激活的运动单位越多

D.运动神经发出的冲动强度越大，动员的运动单位越多

E.运动神经发出的冲动强度越大，动员的运动单位越少