Have the exam results arrived yet?—NoThey were due to have arrived at the school today but apparently the exam boardthem yet

Who’s that boy? —Liang Bo. He is___ very popular singer in Voice of China.

下列句子没有语病的一项是（ ）

下列加横线词解释有误的一项是（ ）

Don’t ______ /l?k/out of the window in class.