Kate's dad is getting old. She will go back home to see him _____it is convenient.
—Why do you come here?—We are here to ____ the public _____ service.
— Grandpa said Transformer 4 was _____.— I am not surprised. It’s not a movie for the old.
—Sorry, Jane. I took your schoolbag _____.—It doesn’t matter.
Don’t add salt to the soup, for it is ________.But you may add some sugar to makeit_______.
—________ paper cutting used during the Spring Festival?— People usually put them on doors or windows.