_________ money has been spent in building the modern library, where we can read books in our spare time.
--- Why do you suggest we buy a new machine?--- Because the old one has been damaged ___________.
-When do we need to pay the balance?-__________ September 30.
A great person is always putting others’ interests _________ his own.
-How amazing it is that astronauts are exploring outer space! -It’s a challenge, I guess, _________man against nature.
When she first arrived in China, she wondered what the future might have_______ for her, but now all her worries are gone.