—__________ do I have to change the robot’s batteries? —Every two months.
#41136
A
How long
B
How soon
C
How often
D
How many
推荐题目
The sentence structure of “Eddie is watching Hobo work”.
#40773
A
S+V+O
B
S+V+P
C
S+V+IO+DO
D
S+V+DO+OC
—________ do you update your micro blog (微博)? —Twice a week.
#41207
A
How long
B
How often
C
How many times
D
How soon
That man is very poor. He even has no room __________.
#41272
A
to live
B
to live in
C
living
D
living i