The medicine is on sale everywhere. You can get it at _______ chemist's.

The chairman thought       necessary to invite Professor Smith to speak at the meeting.

Make ______ a habit to put whole-grain biscuits, nuts or raisins in your backpack. 

— Has        called the police?— Yes, Jim has.

---Is there _________ new in today’s newspaper?---Yes, I will read it to you.