Here are the best words or phrases for each space in the email:

(41) **A. which** – "a place which is called Green Town."

(42) **B. who** – "sensors will control the whole town."

(43) **C. reminded** – "the town reminded me of one of those toys."

(44) **D. clunky** – "it was very clunky with thick curtains."

(45) **C. would have** – "I wish we would have a town like this in this area now!"

So the completed email would look like this:

Hi Juan,

How are you? Last week, my parents took me to a place **which** is called Green Town. They haven't finished building it yet, but the idea is amazing. They say that the town will make all its own energy from green sources and will not release any carbon. Sensors will control the **who** of the whole town.

It will be the size of a small town and it's covered by a plastic dome, like the top half of a ball. The plastic is special. In winter, it will keep heat in and in summer it will keep heat out.

The town **reminded** me of one of those toys which you can turn upside down and then, when you turn it back, it snows inside!

We went into one of the houses and it was cool – I mean, really nice! It wasn't big, but it was very **clunky** with thick curtains and carpets and comfortable furniture in every room. In the kitchen, there were cool appliances which were all connected to the internet.

I wish we **would have** a town like this in this area now!

More soon!

Eric