In the school, I asked one boy and two girls about the name of their headmaster, but _______of them could help me.( )
neither
none
both
all
________ clever dog Lucky is! It can understand Mr. Smith's orders.( )
What
What a
How
How a
We Chinese ________ by the touching documentary Amazing China.( )
encourage
encourages
are encouraged
are encouraging
My little brother is a tidy boy. He always keeps his room ________.( )
clean
to clean
cleaning
cleaned
Lucy, do you want to join the art club or the chess club?
________. I like drawing pictures.( )
Yes, I do
The art club
No, I don't
The chess club
The sky is much bluer ________ we have taken action to protect the environment.( )
because
before
until
unless