There is a _________ faucet in your kitchen.

If I____________ his address, I would give it to you.

In a few years’ time, our houses will be _________ by solar energy.

 Choose the best option A, B, C or D to complete the sentence:

 Remember to turn off the lights before leaving _________.

Can you give us some advice _________ how to improve English, Ms. Mary?

Choose the words or phrases that are not correct in Standard English:

 I think you should replace (A) those ordinary bulbs with (B) saving energy (C) ones.(D)