We complained to the travel agency about the horrible service during our trip,but no one has________by now.
A powerful earthquake struck Haiti's capital,__________ tens of thousands homeless and buried in ruins.
It seemed that he was __________ losing his life. Luckily, he was __________ in the end.
It's not rare in __________ that people in __________ fifties were going to college for further education.
Many students __________ going online because they can gain much fun.
The stubborn boy didn't __________ so he missed the chance.