Your email address: Please enter carefully, correctly, and completely
Below are the compound sentences. All have transition words between the two simple sentences (independent clauses), but there is no punctuation. In the space for each item below, type in the semicolon, the transition word, and the comma. This may seem a little tedious, but it's a good way to get used to the punctuation pattern and the different transition words. If you are careful, the computer will be able to correct your answers.
1. Every day, Americans use about 9.3 billions of barrels of gasoline to power their cars and trucks as a result our environment is deteriorating.
2. To save the environment, engineers are looking into other types of fuel at the same time they are redesigning gasoline powered vehicles to improbe their mileage and reduce their emissions.
3. One of the newly designed cars is called a hybrid because it combines gasoline and electric power consequently this car uses less fuel and causes less pollution.
4. Another new type of vehicle will run on hydrogen fuel cells in fact the U.S. government plans to have 3 percent of cars use this technology by 2007.
5. The only emission from cars powered by hydrogen fuel cells is water nevertheless these cars create other problems.
6. Engineers have to find ways to produce and distribute large amounts of hydrogen in addition they have to find a way to keep the carbon dioxide created by hydrogen out of the atmosphere.
7. Some engineers believe that solar power is a good alternative fuel source unfortunately solar powered cars are complicated to design.
8. The solar car must have a number of solar cells attached to it moreover batteries are needed for storing sunlight to use on cloudy, rainy, or snowy days.
9. Most of these new types of cars have already been designed and tested meanwhile many other problems related to them have yet to be resolved.
10. All of the new cars are cheaper to operate and more friendly to the environment than the gasoline-powered engines in use today still it remains to be seen which design will be most appealing to consumers.
In each space, write your own compound sentences using the given transition word. Remember that a compound sentence of this kind has two complete thoughts (independent clauses) on either side of the semicolon.
A compound sentence using "therefore."
A compound sentence using "for example." (Make sure the second half after the transition forms a compete simple sentence, not just a phrase.)
A compound sentence using "also"