A. help out B. coal C. relativity D. as usual A. take turns B. outspoken C. try on D. airplane A. once in a while B. devotion C. global warming D. cameraman A. prevent B. return C. breakthrough D. muscle A. breadfruit B. came C. seedling D. take medicine A. what's wrong B. go swimming C. glory D. millionaire A. reply B. meteorologist C. towards D. photographic A. furthest B. praise C. envious D. handbag A. decay B. overpopulated C. interested D. in a hurry A. get hold of B. friendship C. Spring Festival D. winkle