---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 |
Why don't you do it ______ other way?
| A．by | B．with | C．some | D．any |
We must show concern ______ each other.
| A．with | B．for | C．at | D．to |
I ______ too much reading.
| A．am tiring | B．tired out because of | C．am tired out in | D．tired myself out with |
We hope that she will _____soon.
| A．returns back | B．reach to home | C．reach for | D．pull through |
If we can keep _____ this speed, we'll arrive there in two or three hours.
| A．on | B．to | C．up | D．at |