Do you know the Three Gorges Dam is the largest hydro-electric dam ever_______?

_____of danger in the street at night, she had to go home, with a friend_____ her.

The _______ look in her face suggested that she ________ it before.

In the novel, the two cities referred to __________ London and Paris.

  If the bike is broken again, you'll have to pay to _____ .