—What ______the number of the students in your school?—About four thousand and seven hundred. A number of them ______ from the countryside.
---Can I ________ your pen?----- _________________________.
Sorry, I don’t know the answer _______ the question_______ it is too hard.
Can you help me dress up _______ Snow White.
People __________ the west often celebrate Halloween __________ many ways.
------______________do you like your birthday so much?---- I always have a party and get lots of presents.A How B. What C. Which D. Why