Waving to her family on the platform, _____.
A. sorrow filled the girl’s mind
B. the girl could not hold back tears of sorrow
C. the girl’s mind was filled with sorrow.
D. the train began to move slowly
The novelist knew little about the precious document(文件). _____, he had hardly heard of it before.
A. Instead B. Therefore
C. Actually D. However
Scientists and doctors across the world have done _____ research over the years, hoping to find a cure for cancer.
A. a great deal of B. quantity of
C. quite a few D. a large number of
I don’t think _________ possible to master a foreign language without much memory work.
A. this B. that C. its D. it
She has already tried her best. Please don’t be too ______ about her job.
A. special B. responsible
C. unusual D. particular
Food safety _____ to customers, which should be the minimum requirement for the food industry.
A. guarantees B. is guaranteed
C. is guaranteeing D. guaranteed
