题目:
"Not having returned home yet, _____", his father said to the police. [ ]
A. his mother got worried
B. his mother must be worried
C. I think he is missing
D. he must have got into some trouble.
答案:
答案:D
"Not having returned home yet, _____", his father said to the police. [ ]
A. his mother got worried
B. his mother must be worried
C. I think he is missing
D. he must have got into some trouble.
答案:D