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

This is not my carIt _________ one of my friends

organizing a party next Saturday, and I’d like you to come—- _______! Ihave another one that day Thank you just the same

.His conclusion, ______ on carefulresearch, was acceptable.

The new method Mr．Wang has been devoted to _____ effective