Hi, Bob! I can't find my history book. ______ you ______ it anywhere

单项选择题Which of the following is NOT a distinctive feature of human language

单项选择题The air of countryside is cleaner than ______ of city, but I don't like to live ______ far.

单项选择题Does the TV say ______ happened in Iraq every day

单项选择题I haven't seen Sara since she was a little girl, and she has changed beyond（）

A. hearing
B. strength
C. recognition
D. measure

单项选择题______ before you leave the lab.