尽管我们担心他的健康，我祖父还是坚持每个周末自己修剪草坪。

Despite our concerns about his health, my grandfather ___insists ___on mowing the lawn himself every weekend.

经理坚持亲自审核每一份报告，这有时会拖慢整个团队的进度。

The manager ___insists ___on reviewing every single report personally, which sometimes slows down the whole team.

她坚持在雨中独自步行回家，拒绝了所有让她搭车的提议。

She ___insisted ___on walking home alone in the rain, refusing all offers of a ride.