Let’s open the window and enjoy some _____ air.
A.gentle B.fresh C.lucky D.famous
— Listen! Someone is playing the piano.
— Wow! _____ wonderful music!
A.How B.How an C.What D.What an
— Do you have any plans for this Sunday?
— I’m not sure. I _____ go to the countryside to see my grandmother.
A.may B.must C.could D.need
I always believe that is difficult if we try our best to do it.
A.something B.anything C.everything D.nothing
--- I knew you lived on the 17th floor just now. And I live on the 19th floor.
--- Really? Just two floors _____ me?
A.below B.on C.under D.above
Everyone makes mistakes in his life. The important thing is not to repeat _____.
A.it B.them C.they D.him
