could you tell me_____?A.when will Mary come backB.when Mary comes backC.when Mary will come back

问题描述:

could you tell me_____?
A.when will Mary come back
B.when Mary comes back
C.when Mary will come back

答案是C
这里是宾语从句,后面接陈述语序,所以排除A,这里应该是MARY还没有回来.不用一般现在时态,将来时更好.