No one knows the age of the old man wandering in the street all day, but judging from his appearance, he is in his sixties.
Some of the schools in Shanghai have moved one step closer to _____ with the global education community.
The teacher asked more _____ to prevent the students’ eyes from being injured.
The beach is so beautiful that it is worthwhile, I think, _____ for a short holiday.
--- Would you be _____ lend me your bicycle? --- Sure.
Towards evening, the patient opened his mouth as if _____ something to his son.