Lightning bugs can blink themselves because of a chemical substance According to the passage, which of the following about lightning bugs is INCORRECT A: They use blinking signals to communicate. B: They use blinking signals to seek for food. C: They use blinking signals to attract their own species. D: They use blinking signals to frighten and warn enemies.
Lightning bugs can blink themselves because of a chemical substance According to the passage, which of the following about lightning bugs is INCORRECT A: They use blinking signals to communicate. B: They use blinking signals to seek for food. C: They use blinking signals to attract their own species. D: They use blinking signals to frighten and warn enemies.
4. Blinking helps ________ the surface of the eye with tears, washing away dust and other irritants and keeping the sight clear.
4. Blinking helps ________ the surface of the eye with tears, washing away dust and other irritants and keeping the sight clear.
She stared up at him, as if asking for some kind of[input=type:blank,size:4][/input], her eyes not blinking. (assure, assurance)
She stared up at him, as if asking for some kind of[input=type:blank,size:4][/input], her eyes not blinking. (assure, assurance)
The plane was flying normally for about 15 minutes before a warning<br/>light started blinking. A: opened B: happened very quickly C: turned on D: flashed on and off
The plane was flying normally for about 15 minutes before a warning<br/>light started blinking. A: opened B: happened very quickly C: turned on D: flashed on and off