So suddenly_______that the animals in the zoo looked very frightened during the total solar eclipse.
_____several times,but unfortunately,the boy still couldn’t smooth away the problem on his own.
_____herself wondering whether she had made a mistake, she felt embarrassed and at a loss.
____ with a camera a compass and several maps , the scientists set out to explore the ancient forest.
----- She doesn’t play the piano, but she likes singing and dancing. -----_________.
The book represents a wonderful love story, so once______, it will be popular with young people.