---Shall we go for a picnic in the forest park tomorrow?---Yes, ________ it rains heavily.
The old man lives ___________ , but he never feels ___________.
—Do you know mother giant pandas have only one or two babies ___________? — Sorry, I don’t know.
— Is this maths problem ___________? — Yes, I can work it out ___________.
— ___________does your sister walk her dog? — Once a day.
— Would you like to climb the hill with us tomorrow? — If it ___________ ,I ___________.