问题
_________ should your robot need_________ batteries?–Every two months.[ ]
A: How soon, to be changed
B: How long, to change
C: How much, change
D: How often, to change
B: How long, to change
C: How much, change
D: How often, to change
正确答案是：
同类题型
When I came here just now, I saw he _______with a black and white dog in the garden.
One of the most delicious drinks _________ I like is orange juice.
________ the small town is!— Yes, it is more beautiful than ________ town that I visited last year.
We will have more money to spend after we ____ our mortgage (贷款).