选择填空。
I am afraid we ______ go. It's going to rain. [ ]
A.can't
B.aren't
C.don't
答案:A
Every time I returned after an , I felt stupid because I was behind the others.
A.ambition
B.abandon
C.absence
D.appoint
非淋菌性 * * 炎的病原体不包括()
A.沙眼衣原体
B.解脲支原体
C.淋球菌
D.苍白螺旋体
E.白念珠菌