you study, grades you will get .

He is quite famous a singer and actor _ his great performance in Taiwan and the mainland. [ ]

Mr. Smith, would you please speak a little more ________?—Sorry! I thought you could follow me.

My sister is only four years old, but she can look after ________ now.

Would you like to go to the concert with me tonight?–I’d love to, but of us two has tickets. Do you have some?