---Mr. Black, I find ______ difficult to play the piano well.
---Oh, I think you just need to practice more
A. it B. it is C. this D. that
He is too tired ______ any more.
A. not to walk B. to walk C. walking D. not walking
____his surprise, he passed the exam.
A. On B. In C.To D. At
_____should not be allowed to go out at night.
A. Twelve-year-old B. Twelve-year-olds C. Twelve year old D. Twelve years old
---My brother is a basketball player.
---And he usually_____ very hard on the playground.
A. has practiced B. is practicing C. practices D. practiced
---Who’s that boy?
---Liang Bo. He is___ very popular singer in Voice of China.
A. the B. an C. a D. /
