—Will you be ______ this evening, Mary?—That depends. I am afraid I will be with my manager discussing a plan.
Only by practising a few hours every day _______ be able to master the language.
The soldiers planned to _____ the bridge but had to give up because a storm ____.
The film Twilight, _______ leading characters are Bella and Edward, is a great hit.
Living in the central Australia desert has a lot of problems, _______ getting water is the worst.
It was in Yuexiu Park _____ they dated for the first time _____ the old couple told us their story.