People usually think lions are _____ scary.
The man said that he was ________ to buy this expensive house.
It is very kind ____ you to help me with these maths problems because it is very difficult ____ me to work them out.
One of the suspects is ____ schoolboy.
— We plan to go out for a picnic next weekend. Would you like to come along?— ______. It’s my favorite.
Food safety is important. Rules ______ to stop people from food pollution.