----________ shall we paint the walls?---- I prefer white. It makes us feel calm and peaceful.
#60252
A
How
B
How often
C
Why
D
What colour
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As far as we know, half of Canadian teenagers do not get enough sleep on school nights, _____?
#64802
A
do they
B
don’t they
C
don’t you
D
isn’t it
She must have arrived there yesterday,_____?
#64684
A
mustn’t she
B
needn’t she
C
hasn’t she
D
didn’t she