选择正确答案填空完成句子。

1. I often play _____________ (a, the, / ) football.

2. He often plays _____________ (a, an, the) guitar.

3. I _____________ (sometime, sometimes) watch TV in the morning.

4. Look at Jenny. She is singing _____________ (loud, loudly).

5. Do you usually help your mother _____________ (do, doing) the housework?

据《灵枢·百病始生》，哪一项是伤脾而病起于阴的病因（）

A.形寒饮冷

B.醉以入房，汗出当风

C.用力过度，汗出浴

D.愁忧思虑

E.寒温不节，饮食失宜