It was the quality of life in the future I took this training course，not just to make more money.
| A．to improve; that | B．improving; when | C．to improve; when | D．improving; that |
I’ve already told you that I’m going to buy it, ________．
| A．how much does it cost | B．no matter how it costs |
| C．however does it cost much | D．however much it costs |
The manager discussed the plan that they would like to see ______ the next year.
| A．carry out | B．carrying out | C．carried out | D．to carry out |
Gun control is a subject ______Americans have argued for a long time.
| A．of which | B．with which | C．about which | D．into which |
The astronauts found that ______ the spaceship went further and further into space, it became more and more difficult to control its own movements.
| A．if | B．till | C．as | D．while |
You shouldn’t talk until ________ to.
| A．asking | B．having asked | C．to ask | D．asked |