Question

It was Alice and her friends who helped the homeless o

Answer 1

A

考查反意疑问句。句意“是爱丽丝和她的朋友们帮助了那个无家可归的老人，不是吗？”it was... who是强调句型，强调人时，可以用who或that。反意疑问句用wasn’t it。故选A。