I'llneverdo______.
A、thingsofthissortTheprogresshehasmadeinmathsismuchgreaterthan______inEnglish.
Willitbe_____beforetheprofessorreturns?
-------IsthisMrLee’sdictionary?
-------It___________.Look!Hisnameisonthecover.
Ourcountryisnolongerwhatit_____.
TheGreatWallinChinaisoneofthefew_____objectsontheearth_____fromthemoon.