--How much did you _____ for the doll?--It ____ me thirty yuan.
Dolphins are rare, but sometimes it is possible _______ them near here.
I ____ have supper until my mother ____ back every day.
—_____ have you travelled abroad with your parents?—Only twice.
The stones _______ from the cormorants’ mouths by the fishermen.
We have to _____ the sports meeting till next week because of the bad weather.