----- Why hasn’t Jack come back yet ? _______ anything have happened to him ?----- I’m not sure, but I guess something _______ .
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.