The blues has been _____part of African-American culture since then, and it is still ______ important part of American culture.
________,he talks a lot about his favorite singers after class.
________ and we’ll get everything ready for the taking off.
Not until we have had a chance to discuss it thoroughly ________ perfectly.
—Have you been to the Great Wall? —Perhaps not in my memory.________,it might have been during my early childhood.
More than a dozen students in that school ________ abroad for further study every year.