—_______ do you go to see your grandparents?—Once a week.
#34988
A
How far
B
How long
C
How often
D
How soon
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The students should take the exams__________ .
#35149
A
serious
B
seriously
C
bad
D
worse
He often gets up very late. He _________ takes exercise in the morning. 
#35305
A
always
B
usually
C
hardly ever
D
quite often
Who sings_________ of the three?
#35167
A
most beautiful
B
most beautifully
C
more beautiful
D
more beautifully