The CDs are on sale!Buy one and you get ______ completely free.
--- What do you enjoy most ____ in the summer holidays? --- Playing table tennis.
--- I think we have met the word before. --- Yes. It is in the reading material ____ we ____ reading yesterday.
She might have been in time for the train, but she _______late.
____ you want to remember its usage, you’d better make a sentence with the new word.
I _____ on a sofa because my grandparents have come for the weekend.