I ______ like to drink milk. [ ]
A. not
B. doesn't
C. don't
D. no
答案：C
The girl is very shy, and never speaks until ___ to.
A．spoken
B．speaking
C．speak
D．be spoken
急性胆囊炎的致病菌主要来源于（）。
A.由肠道至胆道
B.经门静脉而来
C.邻近脏器
D.淋巴管道
E.经动脉系统而来
