— ______sleep do you think is necessary for a Grade 9 student? — 8 hours at least. 
#37367
A
How often
B
How long
C
How many
D
How much
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The students are _______ to know that elephants can walk quietly on tiptoe.
#35995
A
surprising
B
surprised
C
frightening
D
frightened
HangZhou is ________the West Lake.
#43441
A
on
B
famous as
C
famous for
D
has
---- _________ plastic bags we use, _________ it will be to the environment.----I agree _________  you.
#36586
A
The fewer, the better, with
B
The less, the better, to
C
The fewer, the worse, with
D
The less, the worse, to