请选择ABCD.U*Z9I'D9Z:~0K8q7BWhat time will he _______________ back tomorrow?,t)n/J+]7U5t.d
A. be,t)n/J+]7U5t.d
B. is,t)n/J+]7U5t.d
C. am,t)n/J+]7U5t.d
D. are,t)n/J+]7U5t.d