What was the way George thought of __________ enough money to buy the house ?

___________ the chapter four times, and I finally understand the author’s theory．

He feels it dangerous for a girl to be out late at night, so he won’t have his daughter _______ home late.

 As the mid- examination is coming , the students are busy ____ it.

Two years ago, she bought an expensive mountain bike and then she _____ me _____ one.