问题补充：
Do you know if back next week? If he back, please let me know.
A. he comes, will come
B. will he come, comes
C. he will come, comes
D. will he come, will come
答案：
A. he comes, will come
B. will he come, comes
(答案→)C. he will come, comes
D. will he come, will come
解析：在第一句中，if引导的宾语从句，从句的时态要根据自己实际情况而定，从本题中看出，要用一般将来时，在第二空中，是if 引导的条件状语，当从句为祈使句，主句要用一般现在时代替将来时，故选C
