______ without friends ______ the most difficult challenge for Chuck while living on the island.
| A．How to survive, is | B．How does he survive, are |
| C．How does he survive, is | D．How to survive, are |
--- Why do you suggest we buy a new machine?
--- Because the old one has been damaged ___________.
| A．beyond reach | B．beyond repair | C．beyond control | D．beyond description |
－When do we need to pay the balance?
－__________ September 30.
| A．In | B．By | C．During | D．Within |
A great person is always putting others’ interests _________ his own.
| A．below | B．above | C．in | D．on |
-How amazing it is that astronauts are exploring outer space!
-It’s a challenge, I guess, _________man against nature.
| A．of | B．for | C．by | D．about |
When she first arrived in China, she wondered what the future might have_______ for her, but now all her worries are gone.
| A．in need | B．in time | C．in preparation | D．in store |