-------When will he __________?
I won’t go to tomorrow’s party________I am invited.A.ifB.unlessC.when
—________foggy day!—Something must be done to solve the haze problem.A.HowB.WhatC.What a
If he________free tomorrow,he________to see me.
The guide will collect your tickets as soon as you________the station.
—Are you going to Hainan for your holidays?—No,________my parents pay for the trip.