My father is badly ill. We must send for a doctor at once.
--- Must I return the book this week?--- No, you ____________. You can ____________ it for 20 days.
Look! __________ high speed the car is __________! It’s so dangerous.
Father put the ladder(梯子)_________ the tree to pick the apples for me.
--- What a beautiful car! When ________ you ________ it?--- I ________ it for two years.
The old woman lives ________ in the ________ house.