There is ________’b’ and __________’X’ in the word box.A. a; an B. an; an C an; a D. a; a
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.