_____everybody is here, Let’s begin our meeting

I find ________ hard ________ me to understand his painting.—It’s polite ________ you to say so. His painting is nothing.

She is 13 years old and her birthday is __ September.

The chemistry teacher demanded that the laboratoryreport _________ immediately after the experiment was done.

The sentence “Look at the pretty little girl’s dresses” is _______, because it is not clear whether the girl or the dresses are “pretty”.