I am a League member. I volunteer my time ___________others.

sorLi always allows his students to voice their opinions in class, ______sometimes their opinions are not sound

Iyou a beautiful present for your birthday,but I was short of money at that time.

apartment there are two rooms, _____is used as a living room.

Have you seen Mr. Black I have something important to tell him.–Don’t worry. Let me ____________his phone number in my telephone book.