Chemical compounds with Barium, Cobalt, and Strontium are responsible to many of the vivid colors in fireworks.

I bought a bottle of wine ________ we drank it together.

Choose the word or phrase that can substitute for the underlined word. In Britain, the most common leisure activities are home-based.

Isle Royale National Park in Lake Superior can only be reached by the boat.

As our new furniture will deliver on Monday morning, I’ll have to stay at home to check that it was not damaged during transmit.

Salmon lay their eggs and die in fresh water, although they live in salt water when most of their adult lives.

It took the mayor over an hour explanation to the other members of the board why he had missed the last meeting.

The Carbon atoms of the diamond are so strongly bonded that a diamond can only be scratched with other diamond.

Many heavy work that was once done by hand can now be done more easily with the help of compressed air

This is an expensive ________ very useful book.

You can come here either on Monday__________ on Friday.

Karen hasn’t decided still if she wants to run for the Presidency again this year.

Choose the word which has a different stress pattern from the others.

The team leader demanded from his team members a serious attitude towards work, good team spirit, and that they work hard.

To the men who  worked so hard on the project, the news was profound disappointing.

A healthy person snores most because the membrane in the nose becomes dry.

Graphite is a soft, slippery solid that is a good conductor of_______ heat and electricity.

The examination was very difficult, _______ very few were able to pass.

He has done nothing to prepare for the final examination, ______ played.

Rainwater carries unused chemicals from fields into streams or lakes, where various compounds promote the rate growing of weeds.

Ballet performers must be believable actors and actresses as well as experts .