Pierce and Hewitt Telecommunication has developed a computer program that ................. the risks posed by downloaded material.

Although the flight was smooth, I was very ............... when I went to the baggage claim area at the airport. 

Choose the correct answer in each sentence.

The contract must be signed ------- opening of formal discussions.

An anniversary dinner was held .................for high-ranking officials in the corporation.

“I wonder if you could help me?” “______________”

I got 8.0/9.0 for the IELTS test!” “ ........................................”

Borrowing library materials .................... the necessary identification is not allowed.

They   ........   actions to stop the blaze spreading. However, they didn’t do that.

The school clock is not as __________ as it should be, it is usually between one or two minutes fast.

............... Mr. Fowler or Ms. Bloch will have to travel to London for the symposium on textile manufacturing.

You shouldn’t walk around with ____ feet. The floor isn’t very clean.

Put that cigarette out! You are not allowed _____ here 

 I am very tired of ______________ to her complaints day after day. 

Any concems regarding your natural gas appliances should be directed to the manufacturer-retailer ..................... which you purchased the natural gas appliance.

He asked me who  ...........  the editor of that book.

He has just bought a  ...........  schoolbag.

I have a message for people ............... by the traffic chaos.

Tom: “Can I have another cup of tea?” Christy: “______.” 

Between April 2nd ................ April 11th, the Merewether Library will be closed for renovations.

Even though we strive to ............ that all of our products meet the highest quality standards,

Choose the best answer to complete each sentence

The _______ challenge of economic reform was to solve the problems of motivating workers and farmers to produce a larger surplus.