I _________ (think) therefore I exist.

You __________ (waste) food every day.

Identify the sentence in which the form of 'be' is used as auxiliary verb.

They _________ (want) him to be there.

I ____________ (be) excited to be here.

A florist ___________ (sell) flowers.

This book __________ (belong) to Keerthi.

The front door _________ (be) broken.

Choose the correct answer
The teacher _________ (take) extra classes for weaker students