As the busiest woman in Norton, she made __________ her duty to look after all the other people’s affairs in that town.
A. this B. that C. one D. it
Fred, who had expected how it would go with his daughter, had a great worry __________ his mind.
A. on B. in C. with D. at
I was giving a talk to a large group of people, the same talk I __________ to half a dozen other groups.
A. was giving B. am giving C. had given D. have given
A man cannot smile like a child, __________ a child smiles with his eyes, while a man smiles with his lips alone.
A. so B. but C. and D. for
In __________ review of 44 studies, American researchers found that men and women who ate six key foods daily cut the risk of __________ heart disease by 76%.
A. a; the B. the; a C. a; 不填 D. 不填；a
The wild flowers looked like a soft orange blanket __________ the desert.
A. covering B. covered C. cover D. to cover
