Mother said we should ____ all our energy on our study.A spe

Mother said we should ____ all our energy on our study.A spe We should c____ our attention on our study "all __present and all__going on well,"our mother said （ ）4、We should work hard on our ________.A.study B.studing C We should keep on working hard all our ______ (life). we teenagers should concentrate more on our study than our c We should try our best ______ (study) all subject怎么填 Clara said our vidio should have all the sports we do at sch We should all try to take care of our ____ .We can cut down we feel we should always ____ up everything that is on our p we should our energy and youth to the development of our cou we should cast our eyes on doing.