This is a very interesting book. I’ll buy it, _____.
| A．how much may it cost | B．no matter how it may cost |
| C．however much it may cost | D．whatever may it cost |
.You can’t see through the telescope until it ______ to your eyes.
| A．contributed | B．guaranteed good | C．is similar | D．is adjusted to |
.Please tell me how the accident _______.I am still in the dark.
| A．came by | B．came about | C．come out | D．come up |
.Having heard the customers’ ________, they decided to improve their products.
| A．complaints | B．sacrifice | C．arrangement | D．suffering |
Everything he ________ away from him before was returned to his hometown.
| A．took | B．had been taken | C．had had been taken | D．had taken |
The quality of the teachers will influence the students,and ________, the quality of the students will influence the teachers.
| A．as a result | B．in vain | C．in turn | D．in time |