Choose the correct answer to fill in the blank. 

Vitamins ..................... very valuable in protecting the body against harm.

I ................ it's time to leave now, don’t you?

I finished my essay yesterday but ………. it in to the tutor yet.

Susan will be out of town………………..December 2tst to December 31st.

Either the physicians or the chief administrator ............ going to make a decision.

My parents .................. to buy a new car this month.

If he had dropped the vase, it would have broken.

While we’re working on the project ourboss ................ on a beach in Greece!

I keep all my pens………………….this drawer

Nina was very............... because she got lots of present

The teacher..................... us how to do the experiment when the fire bell rang.

Our office has a meeting every Friday because It's important to meet…………..

I'll help you with your homework if I .................. time tomorrow.

The teacher ............... us how to do theexperiment when the fire bell rang.

How do people learn languages.?

Hotels have developed ................... restaurants in this area.

Hamburgers ...................... favorite in America in the early century.

American spends more money on fast food .................... country in the world.

It was 20 degrees …………..zero

Biology is…………………..of all my classes this semester.

I ........... want to be a practisingdoctor but now I’m more interested in research.