Although we may not realize ________, when we talk with others we make ourselves understood not just by words but also by body movements.

He didn’t make     clear when and where the meeting would be held.

The two girls are so alike that strangers find ___ difficult to tell one from the other． 

—Which of the three optional courses did you like best,Joe?—To tell you the truth, I didn’t like          of them.

______ likes money, but money is not ______.