Choose the correct verb form:

Our recent _____ in medicine is the development of laser in treating cancer.

Some children, beforegoing school, go to kindergartens, officially are called nursery schools

Friends advise her to stop doing the housework because old age.

We had to turn _______ their invitation to lunch as we had a previous engagement. 

The Press thought the football manager would be depressed by his dismissal but he just _____. 

Listening to music tape or even on disk is not nearly as good as to go to live concert.

Transfer taxes are imposed on sell exchange of stocks and bonds

Dislike us, they are not very interested in fitness activities

Interestingly, the United States both produces or uses more crude oil than other nations.

What caused explosion in the factory it is still unknown

Have you learnt the reason why does the water of ocean becomes blue?

Floods, earthquakes and other natural disaster happen all over the world, causing death and damage

Before  she moved , Arlane had been the president of the organization since four years

In the future, we will certainly lead a more healthier life.

Tom didn’t believe in us, and it took along time to convince him.

The amount of books in Library of Congress is more 58 million volumes.

The majestic Rocky Mountains stretch each way from Mexico to the Arctic.

Jack had to skip breakfast ; otherwise, he will be late class.

Sixteen people showed _____ for her volleyball training session. 

Yuri Gagarin became the first person to eat and drink in …………

Police sealed off the town – centre two hours meanwhile they searched for the bomb.