It took him ___ to finish his homework.
--My father has decided to ________ smoking. ---That’s good news for us.
_______ the teachers in the school is one hundred, and ________ of them are women teachers.
---Can you tell me whom the book ________ in April, 2012? ---Sorry, I don’t know.
My cousin used to ________ online too late, but now she is used to ________ to bed early.
---How far is it from your school to Lake Taihu? ---It’s about ________ drive.