肉瘿突然增大，伴局部疼痛者，可能是( )

A．甲状腺囊肿
B．腺瘤囊内出血
C．甲状腺腺瘤
D．合并甲亢
E．癌变

按要求完成下列各题。

1.He likes playing the guitar.(用used to改写句子)

   He_______ _______ _______ playing the guitar.

2.The Great Wall is in the north of Beijing.(对画线部分提问)

    _______ _______ the Great Wall?

3.The city is divided into two parts.(用people作主语改为主动语态的句子)

    _______ _______ the city into two parts.

4. He is surprised to see so many people in his room.(译为汉语)

    _________________________________________________

5.  in ,I ,live , center , city , the , of, the (连词成句)

    _________________________________________________