句型转换，每空一词。

1. He is tall and has short hair. (就画线部分提问)   

    ____    _____ he ____    _____ ?

2. Everybody knows me. (改为否定句)   

    _______ knows me.

3. I think he's so great. (改为否定句)

    I _____  ______  he ______ so great.

4. He likes reading and playing  chess. (就画线部分提问)    

    _______ ______  he like?

青霉素G在碱性溶液中加热生成（）。

A．青霉素G钠

B．青霉二酸钠盐

C．生成6-氨基青霉烷酸(6-APA)

D．β-内酰胺环水解开环

E．青霉醛和D-青霉胺