— Can you go skating with us this afternoon?(考点:情态动词have to用法)

— Sorry, I can’t. I ________ take care of my little sister at home.

选择一项:

A.
could


B.
may


C.
have to
出自:国家开放大学管理英语

完成拼图验证

按住下方滑块,将拼图拖到缺口处后松开。

拼图背景,将小拼图拖到缺口处
向右拖动滑块