(2016·江苏)It is often the case _________ anything is possible for those who hang on to hope.

She’s never been to Hainan, ________—________. She went there last week for the first time.

_____ has been introduced to the students to help themmake progress.

It issaid that the novel Henry had devoted so many years to ______published lastweek

One way to ________ species under threat of extinction—whatever the cause—is to remove them to zoos or parks and feed them there.