Fighting an artificial greenhouse effect seems to be the greatest of environmental challenges, ________？

She fell and hit her head, but she ___ to be all right now.

(2013·亳州模拟)I’m sure you’d rather she went to school by bus, 　　　　?

___ the phenomenon of “bystander effect” in the Yueyue event, most Chinese Strongly believe that there still exist love and warmth in people’s hearts

Jim has changed a lot in the past few months.—Yes, he used to ___________ late. But now he is used to ___________ early.