You’ll never succeed in ________ my mind unless you are right.
________ helpful the speech is! It tells us to use the Internet safely.
What
What a
How
What an
As a science lover, I hope I can invent a bike ________ can fly in the sky.
where
when
which
who
—There ________ many ancient Chinese poems in this book. Which one do you like best?
—Climbing a Tower by Wang Zhihuan.
are
is
were
was
—________ are these sports socks?
—10 yuan for 3 pairs.
How many
How much
How often
How long
Look! The students ________ an art class in the park.
have
were having
had
are having