感染性食物中毒的特点是()
A.细菌在肠道中繁殖
B.有传染性
C.无传染性
D.可有全身感染表现
E.有流行性
参考答案：A, B, D, E
— Why didn't you come to our party yesterday? There was a lot of fun.
— I _________, but I had an unexpected guest at home.
A. had
B. was going to
C. did
D. would
Jack, _____ friend, went back to America last Monday.
A me B I C my D mine
