She stepped on my foot _______, not _______, which made me angry.
“Kids, quickly get through this exit, and keep moving in ________There is no need to panic,” said the teacher
Residents in the remote area have ________ about what the disease is all about, not to mention prevention and treatment
名词与其数和所有格及数词的表达To become a qualified librarian, she first worked in a public library for a year to get ________ of the work
________ University of Beijing is one of ________ most outstanding universities (in China)
Not satisfied with his handwriting, the mother asked her son to copy the article ________ second time