--___do you clean the reading room? ---Every two or three days.
#25020
A
How long
B
How far
C
How soon
D
How often
推荐题目
It is difficult for children to change their eating habit later in life. _____,parents should encourage healthy eating from an early age.
#23049
A
Otherwise
B
Therefore
C
Besides
D
However
It’s______kind of you to take so much trouble with me.
#24396
A
awfully
B
foolishly
C
differently
D
patiently
The committee is discussing the problem right now. It will_____ have been solved by the end of next week.
#25082
A
eagerly
B
hopefully
C
immediately
D
gradually
