This label tells the consumers how much energy efficiency each model has, compared _____ other appliances ______ the same category.

Thanks (1)_____ television, people can get the latest information and enjoy interesting programs (2)______ an inexpensive and convenient way. Nowadays, viewers can watch (3)_____ variety of local and international (4)____on different channels.

You forgot to turn off the radio, didn't you?

You didn't __________________________________________

In my opinion, the Internet is a very fast and convenient way for me to get information. I can also communicate with my friends and relatives by means of e-mail or chatting. However, I don't use the Internet very often because I don't have much time. For me, the Internet is a wonderful invention of modern life. It makes our world a small village.

He can get information from the Internet.

Unless we water these flowers, they'll die.

If _________________________________________________

If we go on wasting water, there will be a shortage _____ fresh water _____ a few decades.

Nowadays, viewers can watch (3)_____ variety of local and international (4)____on different channels.

It is possible to store solar energy ______ a number _____ days.

Why don’t we collect empty bottles and cans?

I __________________________________

The electricity bill doesn't cost much because of their using energy-saving bulbs.

Since ______________________________________________