We won’t go back home ___ the rain stops. We now have to stay in the classroom.
Li Ling wants to be a singer, she thinks it’s an interesting __________.
My English teacher is busy, __________ she always finds time to visit her parents.
– When do you exercise every day? -- __________the morning.
Where is Tom? His mother is waiting for __________ outside.
Look! There is __________ old car in front of the house.