____________ modeling business is by no means easy to get into, the good model will always be in demand.
| A．While | B．Since | C．As | D．If |
When you rewrite the paragraph, I advise you to______ the last sentence as it is rather misleading.
| A．point out | B．make out | C．leave out | D．put out |
John, look at the time! _____you play the 
piano at such a late hour？
| A．Shall | B．Need | C．Must | D．May |
---I prefer shutting myself in and listening to music all day on Sundays.
---That’s _______ I don’t agree. You should have a more active life.
| A．how | B．when | C．where | D．what |
It was not until dark____ he found____ he believed was the correct way to solve the problem.
A that , that B that, what C when ,what D when , that
I like getting up very early in summer. The morning air is so good ______.
| A．to be breathed | B．to breathe | C．breathing | D．being breathed |