Mr and Mrs Green have different ideas about where to go this weekend. Mrs Green wants to go to Florida to see her sister, but Mr Green doesn't want to go there. He wants to go to Maine. "Maine is a little cold," says Mrs Green. "I like swimming, but the water in Maine is usually not warm enough."

"Florida's too far," says Mr Green. "We don't have enough time to     6     （r, v, d, i, e）there. It'll take（花费） us more than two days."

Suddenly, the phone rings. Mr Green answers the phone. It is Mr Green's mother. "Please come in the shortest time. I need help. I'm calling from the  7  （l, t, s, o, h, p, i, a） in Boston."

They stop their talking, and in no time（立刻） they both go away.