—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 |
Deep in the forest _____, who made no contact with the outside world.
| A．living a couple | B．were a couple living | C．did a couple live | D．lived a couple |
That night I felt especially lazy and went to bed ____ earlier than usual.
| A．quite | B．rather | C．fairly | D．so |
---Thanks for your trouble.
---Not at all. I’m _____ pleased to help you.
| A．too much | B．too only | C．so much | D．only too |
—The government should think about the medical reform again and take measures to improve it.
—_________. The medical services and efficiency are not good at the moment.
| A．You're confusing me | B．I cannot agree more | C．That's all right | D．Go ahead, please |
—Did you know more about the mine accident?
—Oh, sorry, I had no idea. I ____the Rescue Center now.
| A．will be phoning | B．am to phone | C．will phone | D．phone |