If you can make what the teachers teach ________, you’ll make rapid progress.
Some _________ are flying kites near the river.
After the exam, we'll have________ holiday.
They are those _________ bags.Please put them on the bus.
--- How many workers are there in your factory? --- There are two ___________.
---What do you think of the _______ the Moonlight Sonata by Beethoven? --- It sounds really wonderful.