问题：
—Where is your father now?
—I"m not sure．He _______ be in the kitchen．
[ ]
A. may
B. must
C. will
D. need
—Where is your father now?
—I"m not sure．He _______ be in the kitchen．
B. must
C. will
D. need
—I"m not sure．He _______ be in the kitchen．
[ ]
A. may B. must
C. will
D. need
参考答案：