tern culture,21 was the age________ young people traditionallyreceived a key to their parents’ door, as a symbol of entering adulthood

What about the student in your class, Mr. Wang?—The doctor said that ________ sleep caused him poor memory and poor concentration.[ ]

began to teach me English when I waseight—Wow You must have studied English for six years,

What’s that terrible noise?—The neighbors for a party

Tomin the library every night over the last three months.