메가스터디 245제 영어 13-31번,93-104번 변형 문제

We began helping in the kitchen when we each 1[was turned / turned] three years old. We’re sure that, at that age, we were more of a hindrance than help, but because our mom thought cooking was a good learning tool, she tolerated all of the mess that we 2[had made / made]. Of course, we didn’t care about any of that 3[to learn / learning] stuff, we just thought it was fun, and we still do. We learned to cook through trial and many errors. We can’t tell you how many times we have dropped eggs on the floor, coated the kitchen in flour, or 4[boiled / boiling] things over on the stove. The point is, if there is a mistake 5[that / if] could be made, we have made it. But as our mom always 6[saying / says], mistakes are the best teachers. Through those mistakes we have learned what 7[works / work] and definitely what doesn’t.