— Why are the four students so happy?—______ in the science competition, they are awarded prize money totaling $ 20,000.
Jenny nearly missed the flight ________ doing too much shopping.
If you receive a bunch of roses on Valentine’s Day, do you know what hidden meaning is _______ to it?
_______ makes the people in Shanghai proud is _______ they have achieved a lot in the past ten years.
—Are you worried about her safety? —Just ________. She isn't alone.
—Our holiday cost a lot of money. —Did it? Well, that doesn’t matter ________ you enjoyed yourselves.