—Is ________ here?—No, Peter and Tony have asked for leave.

Science is more than a collection of unrelated facts; to be meaningful and valuable, ______ must be arranged to show generalized character.

I didn’t have _____ to say, so I said _____. 

I have reached a point in my life        I am supposed to make decisions of my own ,.

—Has_______of you learned the songYesterday Once More?—No，sir.Lewis is a new comer.