Only when _______ possible to settle the problem.

Have you found anywhere to do your research?—Yes It’s the companymy elder brother belongs[ ]

lish class, our teacher often creates anenvironment _____ we are given the opportunity to solve problems ourselves

Thanks for listening to my problem and giving me advice, Lily.— _______. That’s what friends are for.

Cliff, I lost your ball atschool. I suppose I should pay for it.　 — Oh. _____. It wasjust an old ball anyway.