____ you start eating in a healthier way, weight control will become much easier．
| A．Unless | B．Although |
| C．Before | D．Once |
I really appreciate that your help is of great _________.
| A．useful | B．value | C．important | D．worth |
He insisted that we ________ rest until we finish the work.
| A．not | B．don’t | C．can’t | D．should |
He was _______ to find that it was almost impos
sible to undertake the task.
| A．cast off | B．cast out | C．cast away | D．cast down |
I took a risk to carry out the project, but it _______ in the end.
| A．paid up | B．paid out | C．paid back | D．paid off |
— You haven’t done it well.
— But I tried my best and did it _____ a way ____ I think is the best.
| A．in; / | B．/; in which | C．by; in that | D．in; which |