28. Vitamin D helps our bodies make a special chemical, and this special chemical, _______, affects our brains, making us feel happy.
It is in England ________ the Olympic Games will be held.
The man didn’t admit _________ anything at the store, when he was questioned by the police.
They spent the afternoon _________ in the street, not knowing what to do.
If you say that someone is ________ for a shock or a surprise you mean that they are going to experience it.
We wouldn’t go abroad for our vacation _______ we could afford it.